Merge branch 'main' into bitmap_buffer

.appveyor.yml

@@ -34,8 +34,8 @@ install:
 - xcopy /S /Y c:\test-images-main\* c:\pillow\tests\images
 - curl -fsSL -o nasm-win64.zip https://raw.githubusercontent.com/python-pillow/pillow-depends/main/nasm-2.16.03-win64.zip
 - 7z x nasm-win64.zip -oc:\
-- choco install ghostscript --version=10.3.1
+- choco install ghostscript --version=10.4.0
-- path c:\nasm-2.16.03;C:\Program Files\gs\gs10.03.1\bin;%PATH%
+- path c:\nasm-2.16.03;C:\Program Files\gs\gs10.04.0\bin;%PATH%
 - cd c:\pillow\winbuild\
 - ps: |
         c:\python39\python.exe c:\pillow\winbuild\build_prepare.py -v --depends=C:\pillow-depends\
@@ -51,11 +51,10 @@ build_script:
 
 test_script:
 - cd c:\pillow
-- '%PYTHON%\%EXECUTABLE% -m pip install pytest pytest-cov pytest-timeout defusedxml numpy olefile pyroma'
+- '%PYTHON%\%EXECUTABLE% -m pip install pytest pytest-cov pytest-timeout defusedxml ipython numpy olefile pyroma'
 - c:\"Program Files (x86)"\"Windows Kits"\10\Debuggers\x86\gflags.exe /p /enable %PYTHON%\%EXECUTABLE%
-- '%PYTHON%\%EXECUTABLE% -c "from PIL import Image"'
+- path %PYTHON%;%PATH%
-- '%PYTHON%\%EXECUTABLE% -m pytest -vx --cov PIL --cov Tests --cov-report term --cov-report xml Tests'
+- .ci\test.cmd
-#- '%PYTHON%\%EXECUTABLE% test-installed.py -v -s %TEST_OPTIONS%' TODO TEST_OPTIONS with pytest?
 
 after_test:
 - curl -Os https://uploader.codecov.io/latest/windows/codecov.exe

.ci/install.sh

@@ -21,7 +21,7 @@ set -e
 
 if [[ $(uname) != CYGWIN* ]]; then
     sudo apt-get -qq install libfreetype6-dev liblcms2-dev python3-tk\
-                             ghostscript libffi-dev libjpeg-turbo-progs libopenjp2-7-dev\
+                             ghostscript libjpeg-turbo-progs libopenjp2-7-dev\
                              cmake meson imagemagick libharfbuzz-dev libfribidi-dev\
                              sway wl-clipboard libopenblas-dev
 fi
@@ -30,6 +30,7 @@ python3 -m pip install --upgrade pip
 python3 -m pip install --upgrade wheel
 python3 -m pip install coverage
 python3 -m pip install defusedxml
+python3 -m pip install ipython
 python3 -m pip install olefile
 python3 -m pip install -U pytest
 python3 -m pip install -U pytest-cov
@@ -37,12 +38,7 @@ python3 -m pip install -U pytest-timeout
 python3 -m pip install pyroma
 
 if [[ $(uname) != CYGWIN* ]]; then
-    # TODO Update condition when NumPy supports free-threading
-    if [[ "$PYTHON_GIL" == "0" ]]; then
-        python3 -m pip install numpy --index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
-    else
     python3 -m pip install numpy
-    fi
 
     # PyQt6 doesn't support PyPy3
     if [[ $GHA_PYTHON_VERSION == 3.* ]]; then
@@ -52,10 +48,7 @@ if [[ $(uname) != CYGWIN* ]]; then
     fi
 
     # Pyroma uses non-isolated build and fails with old setuptools
-    if [[
+    if [[ $GHA_PYTHON_VERSION == 3.9 ]]; then
-        $GHA_PYTHON_VERSION == pypy3.9
-        || $GHA_PYTHON_VERSION == 3.9
-    ]]; then
         # To match pyproject.toml
         python3 -m pip install "setuptools>=67.8"
     fi

.ci/requirements-cibw.txt

@@ -1 +1 @@
-cibuildwheel==2.20.0
+cibuildwheel==2.21.1

.ci/requirements-mypy.txt

@@ -1,4 +1,4 @@
-mypy==1.11.1
+mypy==1.11.2
 IceSpringPySideStubs-PyQt6
 IceSpringPySideStubs-PySide6
 ipython
@@ -6,6 +6,7 @@ numpy
 packaging
 pytest
 sphinx
+types-atheris
 types-defusedxml
 types-olefile
 types-setuptools

.ci/test.cmd

@@ -0,0 +1,3 @@
+python.exe -c "from PIL import Image"
+IF ERRORLEVEL 1 EXIT /B
+python.exe -bb -m pytest -v -x -W always --cov PIL --cov Tests --cov-report term --cov-report xml Tests

.ci/test.sh

@@ -4,4 +4,4 @@ set -e
 
 python3 -c "from PIL import Image"
 
-python3 -bb -m pytest -v -x -W always --cov PIL --cov Tests --cov-report term Tests $REVERSE
+python3 -bb -m pytest -v -x -W always --cov PIL --cov Tests --cov-report term --cov-report xml Tests $REVERSE

.github/workflows/cifuzz.yml

@@ -24,8 +24,6 @@ concurrency:
 
 jobs:
   Fuzzing:
-    # Disabled until google/oss-fuzz#11419 upgrades Python to 3.9+
-    if: false
     runs-on: ubuntu-latest
     steps:
     - name: Build Fuzzers

.github/workflows/macos-install.sh

@@ -23,6 +23,7 @@ export PKG_CONFIG_PATH="/usr/local/opt/openblas/lib/pkgconfig"
 
 python3 -m pip install coverage
 python3 -m pip install defusedxml
+python3 -m pip install ipython
 python3 -m pip install olefile
 python3 -m pip install -U pytest
 python3 -m pip install -U pytest-cov

.github/workflows/test-cygwin.yml

@@ -74,6 +74,7 @@ jobs:
             perl
             python3${{ matrix.python-minor-version }}-cython
             python3${{ matrix.python-minor-version }}-devel
+            python3${{ matrix.python-minor-version }}-ipython
             python3${{ matrix.python-minor-version }}-numpy
             python3${{ matrix.python-minor-version }}-sip
             python3${{ matrix.python-minor-version }}-tkinter

.github/workflows/test-mingw.yml

@@ -80,8 +80,7 @@ jobs:
       - name: Test Pillow
         run: |
           python3 selftest.py --installed
-          python3 -c "from PIL import Image"
+          .ci/test.sh
-          python3 -m pytest -vx --cov PIL --cov Tests --cov-report term --cov-report xml Tests
 
       - name: Upload coverage
         uses: codecov/codecov-action@v4

.github/workflows/test-windows.yml

@@ -35,7 +35,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["pypy3.10", "pypy3.9", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["pypy3.10", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
     timeout-minutes: 30
 
@@ -86,8 +86,8 @@ jobs:
         choco install nasm --no-progress
         echo "C:\Program Files\NASM" >> $env:GITHUB_PATH
 
-        choco install ghostscript --version=10.3.1 --no-progress
+        choco install ghostscript --version=10.4.0 --no-progress
-        echo "C:\Program Files\gs\gs10.00.0\bin" >> $env:GITHUB_PATH
+        echo "C:\Program Files\gs\gs10.04.0\bin" >> $env:GITHUB_PATH
 
         # Install extra test images
         xcopy /S /Y Tests\test-images\* Tests\images
@@ -190,8 +190,8 @@ jobs:
 
     - name: Test Pillow
       run: |
-        path %GITHUB_WORKSPACE%\\winbuild\\build\\bin;%PATH%
+        path %GITHUB_WORKSPACE%\winbuild\build\bin;%PATH%
-        python.exe -m pytest -vx -W always --cov PIL --cov Tests --cov-report term --cov-report xml Tests
+        .ci\test.cmd
       shell: cmd
 
     - name: Prepare to upload errors

.github/workflows/test.yml

@@ -37,12 +37,11 @@ jobs:
       fail-fast: false
       matrix:
         os: [
-          "macos-14",
+          "macos-latest",
           "ubuntu-latest",
         ]
         python-version: [
           "pypy3.10",
-          "pypy3.9",
           "3.13",
           "3.12",
           "3.11",
@@ -57,7 +56,7 @@ jobs:
         # M1 only available for 3.10+
         - { os: "macos-13", python-version: "3.9" }
         exclude:
-        - { os: "macos-14", python-version: "3.9" }
+        - { os: "macos-latest", python-version: "3.9" }
 
     runs-on: ${{ matrix.os }}
     name: ${{ matrix.os }} Python ${{ matrix.python-version }} ${{ matrix.disable-gil && 'free-threaded' || '' }}
@@ -77,7 +76,7 @@ jobs:
           "pyproject.toml"
 
     - name: Set up Python ${{ matrix.python-version }} (free-threaded)
-      uses: deadsnakes/action@v3.1.0
+      uses: deadsnakes/action@v3.2.0
       if: "${{ matrix.disable-gil }}"
       with:
         python-version: ${{ matrix.python-version }}

.github/workflows/wheels-dependencies.sh

@@ -16,11 +16,11 @@ ARCHIVE_SDIR=pillow-depends-main
 
 # Package versions for fresh source builds
 FREETYPE_VERSION=2.13.2
-HARFBUZZ_VERSION=8.5.0
+HARFBUZZ_VERSION=10.0.1
-LIBPNG_VERSION=1.6.43
+LIBPNG_VERSION=1.6.44
-JPEGTURBO_VERSION=3.0.3
+JPEGTURBO_VERSION=3.0.4
 OPENJPEG_VERSION=2.5.2
-XZ_VERSION=5.4.5
+XZ_VERSION=5.6.2
 TIFF_VERSION=4.6.0
 LCMS2_VERSION=2.16
 if [[ -n "$IS_MACOS" ]]; then
@@ -40,7 +40,7 @@ BROTLI_VERSION=1.1.0
 
 if [[ -n "$IS_MACOS" ]] && [[ "$CIBW_ARCHS" == "x86_64" ]]; then
     function build_openjpeg {
-        local out_dir=$(fetch_unpack https://github.com/uclouvain/openjpeg/archive/v${OPENJPEG_VERSION}.tar.gz openjpeg-${OPENJPEG_VERSION}.tar.gz)
+        local out_dir=$(fetch_unpack https://github.com/uclouvain/openjpeg/archive/v$OPENJPEG_VERSION.tar.gz openjpeg-$OPENJPEG_VERSION.tar.gz)
         (cd $out_dir \
             && cmake -DCMAKE_INSTALL_PREFIX=$BUILD_PREFIX -DCMAKE_INSTALL_NAME_DIR=$BUILD_PREFIX/lib . \
             && make install)
@@ -50,7 +50,7 @@ fi
 
 function build_brotli {
     local cmake=$(get_modern_cmake)
-    local out_dir=$(fetch_unpack https://github.com/google/brotli/archive/v$BROTLI_VERSION.tar.gz brotli-1.1.0.tar.gz)
+    local out_dir=$(fetch_unpack https://github.com/google/brotli/archive/v$BROTLI_VERSION.tar.gz brotli-$BROTLI_VERSION.tar.gz)
     (cd $out_dir \
         && $cmake -DCMAKE_INSTALL_PREFIX=$BUILD_PREFIX -DCMAKE_INSTALL_NAME_DIR=$BUILD_PREFIX/lib . \
         && make install)
@@ -60,6 +60,19 @@ function build_brotli {
     fi
 }
 
+function build_harfbuzz {
+    python3 -m pip install meson ninja
+
+    local out_dir=$(fetch_unpack https://github.com/harfbuzz/harfbuzz/releases/download/$HARFBUZZ_VERSION/$HARFBUZZ_VERSION.tar.xz harfbuzz-$HARFBUZZ_VERSION.tar.xz)
+    (cd $out_dir \
+        && meson setup build --buildtype=release -Dfreetype=enabled -Dglib=disabled)
+    (cd $out_dir/build \
+        && meson install)
+    if [[ "$MB_ML_LIBC" == "manylinux" ]]; then
+        cp /usr/local/lib64/libharfbuzz* /usr/local/lib
+    fi
+}
+
 function build {
     if [[ -n "$IS_MACOS" ]] && [[ "$CIBW_ARCHS" == "arm64" ]]; then
         sudo chown -R runner /usr/local
@@ -109,15 +122,7 @@ function build {
         build_freetype
     fi
 
-    if [ -z "$IS_MACOS" ]; then
+    build_harfbuzz
-        export FREETYPE_LIBS=-lfreetype
-        export FREETYPE_CFLAGS=-I/usr/local/include/freetype2/
-    fi
-    build_simple harfbuzz $HARFBUZZ_VERSION https://github.com/harfbuzz/harfbuzz/releases/download/$HARFBUZZ_VERSION tar.xz --with-freetype=yes --with-glib=no
-    if [ -z "$IS_MACOS" ]; then
-        export FREETYPE_LIBS=""
-        export FREETYPE_CFLAGS=""
-    fi
 }
 
 # Any stuff that you need to do before you start building the wheels

.github/workflows/wheels-test.sh

@@ -13,14 +13,7 @@ else
     yum install -y fribidi
 fi
 
-if [ "${AUDITWHEEL_POLICY::9}" != "musllinux" ]; then
+python3 -m pip install numpy
-  # TODO Update condition when NumPy supports free-threading
-  if [ $(python3 -c "import sysconfig;print(sysconfig.get_config_var('Py_GIL_DISABLED'))") == "1" ]; then
-    python3 -m pip install numpy --index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
-  else
-    python3 -m pip install numpy
-  fi
-fi
 
 if [ ! -d "test-images-main" ]; then
     curl -fsSL -o pillow-test-images.zip https://github.com/python-pillow/test-images/archive/main.zip

.github/workflows/wheels.yml

@@ -48,7 +48,6 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-          - pp39
           - pp310
           - cp3{9,10,11}
           - cp3{12,13}
@@ -57,7 +56,6 @@ jobs:
           - manylinux_2_28
           - musllinux
         exclude:
-          - { python-version: pp39, spec: musllinux }
           - { python-version: pp310, spec: musllinux }
 
     steps:
@@ -104,12 +102,23 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - name: "macOS x86_64"
+          - name: "macOS 10.10 x86_64"
             os: macos-13
             cibw_arch: x86_64
+            build: "cp3{9,10,11}*"
             macosx_deployment_target: "10.10"
+          - name: "macOS 10.13 x86_64"
+            os: macos-13
+            cibw_arch: x86_64
+            build: "cp3{12,13}*"
+            macosx_deployment_target: "10.13"
+          - name: "macOS 10.15 x86_64"
+            os: macos-13
+            cibw_arch: x86_64
+            build: "pp310*"
+            macosx_deployment_target: "10.15"
           - name: "macOS arm64"
-            os: macos-14
+            os: macos-latest
             cibw_arch: arm64
             macosx_deployment_target: "11.0"
           - name: "manylinux2014 and musllinux x86_64"
@@ -147,7 +156,7 @@ jobs:
 
       - uses: actions/upload-artifact@v4
         with:
-          name: dist-${{ matrix.os }}-${{ matrix.cibw_arch }}${{ matrix.manylinux && format('-{0}', matrix.manylinux) }}
+          name: dist-${{ matrix.os }}${{ matrix.macosx_deployment_target && format('-{0}', matrix.macosx_deployment_target) }}-${{ matrix.cibw_arch }}${{ matrix.manylinux && format('-{0}', matrix.manylinux) }}
           path: ./wheelhouse/*.whl
 
   windows:
@@ -269,7 +278,7 @@ jobs:
           path: dist
           merge-multiple: true
       - name: Upload wheels to scientific-python-nightly-wheels
-        uses: scientific-python/upload-nightly-action@b67d7fcc0396e1128a474d1ab2b48aa94680f9fc # 0.5.0
+        uses: scientific-python/upload-nightly-action@ccf29c805b5d0c1dc31fa97fcdb962be074cade3 # 0.6.0
         with:
           artifacts_path: dist
           anaconda_nightly_upload_token: ${{ secrets.ANACONDA_ORG_UPLOAD_TOKEN }}

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.6.0
+    rev: v0.6.3
     hooks:
       - id: ruff
         args: [--exit-non-zero-on-fix]
@@ -50,7 +50,7 @@ repos:
         exclude: ^.github/.*TEMPLATE|^Tests/(fonts|images)/
 
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.29.1
+    rev: 0.29.2
     hooks:
       - id: check-github-workflows
       - id: check-readthedocs

CHANGES.rst

@@ -5,6 +5,87 @@ Changelog (Pillow)
 11.0.0 (unreleased)
 -------------------
 
+- Improved copying imagequant libraries #8420
+  [radarhere]
+
+- Use Capsule for WebP saving #8386
+  [homm, radarhere]
+
+- Fixed writing multiple StripOffsets to TIFF #8317
+  [Yay295, radarhere]
+
+- Fix dereference before checking for NULL in ImagingTransformAffine #8398
+  [PavlNekrasov]
+
+- Use transposed size after opening for TIFF images #8390
+  [radarhere, homm]
+
+- Improve ImageFont error messages #8338
+  [yngvem, radarhere, hugovk]
+
+- Mention MAX_TEXT_CHUNK limit in PNG error message #8391
+  [radarhere]
+
+- Cast Dib handle to int #8385
+  [radarhere]
+
+- Accept float stroke widths #8369
+  [radarhere]
+
+- Deprecate ICNS (width, height, scale) sizes in favour of load(scale) #8352
+  [radarhere]
+
+- Improved handling of RGBA palettes when saving GIF images #8366
+  [radarhere]
+
+- Deprecate isImageType #8364
+  [radarhere]
+
+- Support converting more modes to LAB by converting to RGBA first #8358
+  [radarhere]
+
+- Deprecate support for FreeType 2.9.0 #8356
+  [hugovk, radarhere]
+
+- Removed unused TiffImagePlugin IFD_LEGACY_API #8355
+  [radarhere]
+
+- Handle duplicate EXIF header #8350
+  [zakajd, radarhere]
+
+- Return early from BoxBlur if either width or height is zero #8347
+  [radarhere]
+
+- Check text is either string or bytes #8308
+  [radarhere]
+
+- Added writing XMP bytes to JPEG #8286
+  [radarhere]
+
+- Support JPEG2000 RGBA palettes #8256
+  [radarhere]
+
+- Expand C image to match GIF frame image size #8237
+  [radarhere]
+
+- Allow saving I;16 images as PPM #8231
+  [radarhere]
+
+- When IFD is missing, connect get_ifd() dictionary to Exif #8230
+  [radarhere]
+
+- Skip truncated ICO mask if LOAD_TRUNCATED_IMAGES is enabled #8180
+  [radarhere]
+
+- Treat unknown JPEG2000 colorspace as unspecified #8343
+  [radarhere]
+
+- Updated error message when saving WebP with invalid width or height #8322
+  [radarhere, hugovk]
+
+- Remove warning if NumPy failed to raise an error during conversion #8326
+  [radarhere]
+
 - If left and right sides meet in ImageDraw.rounded_rectangle(), do not draw rectangle to fill gap #8304
   [radarhere]
 

Makefile

@@ -117,7 +117,7 @@ lint-fix:
 	python3 -c "import black" > /dev/null 2>&1 || python3 -m pip install black
 	python3 -m black .
 	python3 -c "import ruff" > /dev/null 2>&1 || python3 -m pip install ruff
-	python3 -m ruff --fix .
+	python3 -m ruff check --fix .
 
 .PHONY: mypy
 mypy:

README.md

@@ -51,7 +51,7 @@ As of 2019, Pillow development is
             <a href="https://app.codecov.io/gh/python-pillow/Pillow"><img
                 alt="Code coverage"
                 src="https://codecov.io/gh/python-pillow/Pillow/branch/main/graph/badge.svg"></a>
-            <a href="https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:pillow"><img
+            <a href="https://issues.oss-fuzz.com/issues?q=title:pillow"><img
                 alt="Fuzzing Status"
                 src="https://oss-fuzz-build-logs.storage.googleapis.com/badges/pillow.svg"></a>
         </td>

Tests/oss-fuzz/fuzz_font.py

@@ -16,8 +16,9 @@
 
 
 import atheris
+from atheris.import_hook import instrument_imports
 
-with atheris.instrument_imports():
+with instrument_imports():
     import sys
 
     import fuzzers

Tests/oss-fuzz/fuzz_pillow.py

@@ -14,8 +14,9 @@
 
 
 import atheris
+from atheris.import_hook import instrument_imports
 
-with atheris.instrument_imports():
+with instrument_imports():
     import sys
 
     import fuzzers

Tests/oss-fuzz/python.supp

@@ -1,5 +1,5 @@
 {
-   <py3_8_encode_current_locale>
+   <py3_10_encode_current_locale>
    Memcheck:Cond
    ...
    fun:encode_current_locale

Tests/test_box_blur.py

@@ -71,6 +71,11 @@ def test_color_modes() -> None:
         box_blur(sample.convert("YCbCr"))
 
 
+@pytest.mark.parametrize("size", ((0, 1), (1, 0)))
+def test_zero_dimension(size: tuple[int, int]) -> None:
+    assert box_blur(Image.new("L", size)).size == size
+
+
 def test_radius_0() -> None:
     assert_blur(
         sample,

Tests/test_color_lut.py

@@ -120,7 +120,6 @@ class TestColorLut3DCoreAPI:
         self, lut_mode: str, table_channels: int, table_size: int | tuple[int, int, int]
     ) -> None:
         im = Image.new("RGB", (10, 10), 0)
-        assert im.im is not None
         im.im.color_lut_3d(
             lut_mode,
             Image.Resampling.BILINEAR,
@@ -142,7 +141,6 @@ class TestColorLut3DCoreAPI:
     ) -> None:
         with pytest.raises(ValueError, match="wrong mode"):
             im = Image.new(image_mode, (10, 10), 0)
-            assert im.im is not None
             im.im.color_lut_3d(
                 lut_mode,
                 Image.Resampling.BILINEAR,
@@ -162,7 +160,6 @@ class TestColorLut3DCoreAPI:
         self, image_mode: str, lut_mode: str, table_channels: int, table_size: int
     ) -> None:
         im = Image.new(image_mode, (10, 10), 0)
-        assert im.im is not None
         im.im.color_lut_3d(
             lut_mode,
             Image.Resampling.BILINEAR,

Tests/test_file_gif.py

@@ -1378,8 +1378,26 @@ def test_lzw_bits() -> None:
         im.load()
 
 
-def test_extents() -> None:
+@pytest.mark.parametrize(
-    with Image.open("Tests/images/test_extents.gif") as im:
+    "test_file, loading_strategy",
+    (
+        ("test_extents.gif", GifImagePlugin.LoadingStrategy.RGB_AFTER_FIRST),
+        (
+            "test_extents.gif",
+            GifImagePlugin.LoadingStrategy.RGB_AFTER_DIFFERENT_PALETTE_ONLY,
+        ),
+        (
+            "test_extents_transparency.gif",
+            GifImagePlugin.LoadingStrategy.RGB_AFTER_FIRST,
+        ),
+    ),
+)
+def test_extents(
+    test_file: str, loading_strategy: GifImagePlugin.LoadingStrategy
+) -> None:
+    GifImagePlugin.LOADING_STRATEGY = loading_strategy
+    try:
+        with Image.open("Tests/images/" + test_file) as im:
             assert im.size == (100, 100)
 
             # Check that n_frames does not change the size
@@ -1389,6 +1407,11 @@ def test_extents() -> None:
             im.seek(1)
             assert im.size == (150, 150)
 
+            im.load()
+            assert im.im.size == (150, 150)
+    finally:
+        GifImagePlugin.LOADING_STRATEGY = GifImagePlugin.LoadingStrategy.RGB_AFTER_FIRST
+
 
 def test_missing_background() -> None:
     # The Global Color Table Flag isn't set, so there is no background color index,
@@ -1406,3 +1429,21 @@ def test_saving_rgba(tmp_path: Path) -> None:
     with Image.open(out) as reloaded:
         reloaded_rgba = reloaded.convert("RGBA")
         assert reloaded_rgba.load()[0, 0][3] == 0
+
+
+def test_optimizing_p_rgba(tmp_path: Path) -> None:
+    out = str(tmp_path / "temp.gif")
+
+    im1 = Image.new("P", (100, 100))
+    d = ImageDraw.Draw(im1)
+    d.ellipse([(40, 40), (60, 60)], fill=1)
+    data = [0, 0, 0, 0, 0, 0, 0, 255] + [0, 0, 0, 0] * 254
+    im1.putpalette(data, "RGBA")
+
+    im2 = Image.new("P", (100, 100))
+    im2.putpalette(data, "RGBA")
+
+    im1.save(out, save_all=True, append_images=[im2])
+
+    with Image.open(out) as reloaded:
+        assert reloaded.n_frames == 2

Tests/test_file_icns.py

@@ -63,8 +63,8 @@ def test_save_append_images(tmp_path: Path) -> None:
         assert_image_similar_tofile(im, temp_file, 1)
 
         with Image.open(temp_file) as reread:
-            reread.size = (16, 16, 2)
+            reread.size = (16, 16)
-            reread.load()
+            reread.load(2)
             assert_image_equal(reread, provided_im)
 
 
@@ -87,14 +87,21 @@ def test_sizes() -> None:
         for w, h, r in im.info["sizes"]:
             wr = w * r
             hr = h * r
+            with pytest.warns(DeprecationWarning):
                 im.size = (w, h, r)
             im.load()
             assert im.mode == "RGBA"
             assert im.size == (wr, hr)
 
+            # Test using load() with scale
+            im.size = (w, h)
+            im.load(scale=r)
+            assert im.mode == "RGBA"
+            assert im.size == (wr, hr)
+
         # Check that we cannot load an incorrect size
         with pytest.raises(ValueError):
-            im.size = (1, 1)
+            im.size = (1, 2)
 
 
 def test_older_icon() -> None:
@@ -105,8 +112,8 @@ def test_older_icon() -> None:
             wr = w * r
             hr = h * r
             with Image.open("Tests/images/pillow2.icns") as im2:
-                im2.size = (w, h, r)
+                im2.size = (w, h)
-                im2.load()
+                im2.load(r)
                 assert im2.mode == "RGBA"
                 assert im2.size == (wr, hr)
 
@@ -122,8 +129,8 @@ def test_jp2_icon() -> None:
             wr = w * r
             hr = h * r
             with Image.open("Tests/images/pillow3.icns") as im2:
-                im2.size = (w, h, r)
+                im2.size = (w, h)
-                im2.load()
+                im2.load(r)
                 assert im2.mode == "RGBA"
                 assert im2.size == (wr, hr)
 

Tests/test_file_ico.py

@@ -6,7 +6,7 @@ from pathlib import Path
 
 import pytest
 
-from PIL import IcoImagePlugin, Image, ImageDraw
+from PIL import IcoImagePlugin, Image, ImageDraw, ImageFile
 
 from .helper import assert_image_equal, assert_image_equal_tofile, hopper
 
@@ -241,3 +241,29 @@ def test_draw_reloaded(tmp_path: Path) -> None:
 
     with Image.open(outfile) as im:
         assert_image_equal_tofile(im, "Tests/images/hopper_draw.ico")
+
+
+def test_truncated_mask() -> None:
+    # 1 bpp
+    with open("Tests/images/hopper_mask.ico", "rb") as fp:
+        data = fp.read()
+
+    ImageFile.LOAD_TRUNCATED_IMAGES = True
+    data = data[:-3]
+
+    try:
+        with Image.open(io.BytesIO(data)) as im:
+            with Image.open("Tests/images/hopper_mask.png") as expected:
+                assert im.mode == "1"
+
+        # 32 bpp
+        output = io.BytesIO()
+        expected = hopper("RGBA")
+        expected.save(output, "ico", bitmap_format="bmp")
+
+        data = output.getvalue()[:-1]
+
+        with Image.open(io.BytesIO(data)) as im:
+            assert im.mode == "RGB"
+    finally:
+        ImageFile.LOAD_TRUNCATED_IMAGES = False

Tests/test_file_jpeg.py

@@ -991,12 +991,29 @@ class TestFileJpeg:
             else:
                 assert im.getxmp() == {"xmpmeta": None}
 
+    def test_save_xmp(self, tmp_path: Path) -> None:
+        f = str(tmp_path / "temp.jpg")
+        im = hopper()
+        im.save(f, xmp=b"XMP test")
+        with Image.open(f) as reloaded:
+            assert reloaded.info["xmp"] == b"XMP test"
+
+        im.info["xmp"] = b"1" * 65504
+        im.save(f)
+        with Image.open(f) as reloaded:
+            assert reloaded.info["xmp"] == b"1" * 65504
+
+        with pytest.raises(ValueError):
+            im.save(f, xmp=b"1" * 65505)
+
     @pytest.mark.timeout(timeout=1)
     def test_eof(self) -> None:
         # Even though this decoder never says that it is finished
         # the image should still end when there is no new data
         class InfiniteMockPyDecoder(ImageFile.PyDecoder):
-            def decode(self, buffer: bytes) -> tuple[int, int]:
+            def decode(
+                self, buffer: bytes | Image.SupportsArrayInterface
+            ) -> tuple[int, int]:
                 return 0, 0
 
         Image.register_decoder("INFINITE", InfiniteMockPyDecoder)

Tests/test_file_jpeg2k.py

@@ -182,6 +182,15 @@ def test_restricted_icc_profile() -> None:
         ImageFile.LOAD_TRUNCATED_IMAGES = False
 
 
+@pytest.mark.skipif(
+    not os.path.exists(EXTRA_DIR), reason="Extra image files not installed"
+)
+def test_unknown_colorspace() -> None:
+    with Image.open(f"{EXTRA_DIR}/file8.jp2") as im:
+        im.load()
+        assert im.mode == "L"
+
+
 def test_header_errors() -> None:
     for path in (
         "Tests/images/invalid_header_length.jp2",
@@ -391,6 +400,13 @@ def test_pclr() -> None:
         assert len(im.palette.colors) == 256
         assert im.palette.colors[(255, 255, 255)] == 0
 
+    with Image.open(
+        f"{EXTRA_DIR}/147af3f1083de4393666b7d99b01b58b_signal_sigsegv_130c531_6155_5136.jp2"
+    ) as im:
+        assert im.mode == "P"
+        assert len(im.palette.colors) == 139
+        assert im.palette.colors[(0, 0, 0, 0)] == 0
+
 
 def test_comment() -> None:
     with Image.open("Tests/images/comment.jp2") as im:

Tests/test_file_ppm.py

@@ -95,7 +95,9 @@ def test_16bit_pgm_write(tmp_path: Path) -> None:
     with Image.open("Tests/images/16_bit_binary.pgm") as im:
         filename = str(tmp_path / "temp.pgm")
         im.save(filename, "PPM")
+        assert_image_equal_tofile(im, filename)
 
+        im.convert("I;16").save(filename, "PPM")
         assert_image_equal_tofile(im, filename)
 
 

Tests/test_file_tiff.py

@@ -108,7 +108,8 @@ class TestFileTiff:
             assert_image_equal_tofile(im, "Tests/images/hopper.tif")
 
         with Image.open("Tests/images/hopper_bigtiff.tif") as im:
-            # multistrip support not yet implemented
+            # The data type of this file's StripOffsets tag is LONG8,
+            # which is not yet supported for offset data when saving multiple frames.
             del im.tag_v2[273]
 
             outfile = str(tmp_path / "temp.tif")
@@ -684,6 +685,13 @@ class TestFileTiff:
             with Image.open(outfile) as reloaded:
                 assert_image_equal_tofile(reloaded, infile)
 
+    def test_invalid_tiled_dimensions(self) -> None:
+        with open("Tests/images/tiff_tiled_planar_raw.tif", "rb") as fp:
+            data = fp.read()
+        b = BytesIO(data[:144] + b"\x02" + data[145:])
+        with pytest.raises(ValueError):
+            Image.open(b)
+
     @pytest.mark.parametrize("mode", ("P", "PA"))
     def test_palette(self, mode: str, tmp_path: Path) -> None:
         outfile = str(tmp_path / "temp.tif")

Tests/test_file_tiff_metadata.py

@@ -181,6 +181,29 @@ def test_change_stripbytecounts_tag_type(tmp_path: Path) -> None:
         assert reloaded.tag_v2.tagtype[TiffImagePlugin.STRIPBYTECOUNTS] == TiffTags.LONG
 
 
+def test_save_multiple_stripoffsets() -> None:
+    ifd = TiffImagePlugin.ImageFileDirectory_v2()
+    ifd[TiffImagePlugin.STRIPOFFSETS] = (123, 456)
+    assert ifd.tagtype[TiffImagePlugin.STRIPOFFSETS] == TiffTags.LONG
+
+    # all values are in little-endian
+    assert ifd.tobytes() == (
+        # number of tags == 1
+        b"\x01\x00"
+        # tag id (2 bytes), type (2 bytes), count (4 bytes), value (4 bytes)
+        # TiffImagePlugin.STRIPOFFSETS, TiffTags.LONG, 2, 18
+        # where STRIPOFFSETS is 273, LONG is 4
+        # and 18 is the offset of the tag data
+        b"\x11\x01\x04\x00\x02\x00\x00\x00\x12\x00\x00\x00"
+        # end of entries
+        b"\x00\x00\x00\x00"
+        # 26 is the total number of bytes output,
+        # the offset for any auxiliary strip data that will then be appended
+        # (123 + 26, 456 + 26) == (149, 482)
+        b"\x95\x00\x00\x00\xe2\x01\x00\x00"
+    )
+
+
 def test_no_duplicate_50741_tag() -> None:
     assert TAG_IDS["MakerNoteSafety"] == 50741
     assert TAG_IDS["BestQualityScale"] == 50780

Tests/test_file_webp.py

@@ -72,7 +72,7 @@ class TestFileWebp:
     def _roundtrip(
         self, tmp_path: Path, mode: str, epsilon: float, args: dict[str, Any] = {}
     ) -> None:
-        temp_file = str(tmp_path / "temp.webp")
+        temp_file = tmp_path / "temp.webp"
 
         hopper(mode).save(temp_file, **args)
         with Image.open(temp_file) as image:
@@ -116,7 +116,7 @@ class TestFileWebp:
         assert buffer_no_args.getbuffer() != buffer_method.getbuffer()
 
     def test_save_all(self, tmp_path: Path) -> None:
-        temp_file = str(tmp_path / "temp.webp")
+        temp_file = tmp_path / "temp.webp"
         im = Image.new("RGB", (1, 1))
         im2 = Image.new("RGB", (1, 1), "#f00")
         im.save(temp_file, save_all=True, append_images=[im2])
@@ -127,6 +127,11 @@ class TestFileWebp:
             reloaded.seek(1)
             assert_image_similar(im2, reloaded, 1)
 
+    def test_unsupported_image_mode(self) -> None:
+        im = Image.new("1", (1, 1))
+        with pytest.raises(ValueError):
+            _webp.WebPEncode(im.getim(), False, 0, 0, "", 4, 0, b"", "")
+
     def test_icc_profile(self, tmp_path: Path) -> None:
         self._roundtrip(tmp_path, self.rgb_mode, 12.5, {"icc_profile": None})
         self._roundtrip(
@@ -151,12 +156,21 @@ class TestFileWebp:
 
     @pytest.mark.skipif(sys.maxsize <= 2**32, reason="Requires 64-bit system")
     def test_write_encoding_error_message(self, tmp_path: Path) -> None:
-        temp_file = str(tmp_path / "temp.webp")
         im = Image.new("RGB", (15000, 15000))
         with pytest.raises(ValueError) as e:
-            im.save(temp_file, method=0)
+            im.save(tmp_path / "temp.webp", method=0)
         assert str(e.value) == "encoding error 6"
 
+    @pytest.mark.skipif(sys.maxsize <= 2**32, reason="Requires 64-bit system")
+    def test_write_encoding_error_bad_dimension(self, tmp_path: Path) -> None:
+        im = Image.new("L", (16384, 16384))
+        with pytest.raises(ValueError) as e:
+            im.save(tmp_path / "temp.webp")
+        assert (
+            str(e.value)
+            == "encoding error 5: Image size exceeds WebP limit of 16383 pixels"
+        )
+
     def test_WebPEncode_with_invalid_args(self) -> None:
         """
         Calling encoder functions with no arguments should result in an error.
@@ -176,9 +190,8 @@ class TestFileWebp:
     def test_no_resource_warning(self, tmp_path: Path) -> None:
         file_path = "Tests/images/hopper.webp"
         with Image.open(file_path) as image:
-            temp_file = str(tmp_path / "temp.webp")
             with warnings.catch_warnings():
-                image.save(temp_file)
+                image.save(tmp_path / "temp.webp")
 
     def test_file_pointer_could_be_reused(self) -> None:
         file_path = "Tests/images/hopper.webp"
@@ -193,15 +206,16 @@ class TestFileWebp:
     def test_invalid_background(
         self, background: int | tuple[int, ...], tmp_path: Path
     ) -> None:
-        temp_file = str(tmp_path / "temp.webp")
+        temp_file = tmp_path / "temp.webp"
         im = hopper()
         with pytest.raises(OSError):
             im.save(temp_file, save_all=True, append_images=[im], background=background)
 
     def test_background_from_gif(self, tmp_path: Path) -> None:
+        out_webp = tmp_path / "temp.webp"
+
         # Save L mode GIF with background
         with Image.open("Tests/images/no_palette_with_background.gif") as im:
-            out_webp = str(tmp_path / "temp.webp")
             im.save(out_webp, save_all=True)
 
         # Save P mode GIF with background
@@ -209,11 +223,10 @@ class TestFileWebp:
             original_value = im.convert("RGB").getpixel((1, 1))
 
             # Save as WEBP
-            out_webp = str(tmp_path / "temp.webp")
             im.save(out_webp, save_all=True)
 
         # Save as GIF
-        out_gif = str(tmp_path / "temp.gif")
+        out_gif = tmp_path / "temp.gif"
         with Image.open(out_webp) as im:
             im.save(out_gif)
 
@@ -223,10 +236,10 @@ class TestFileWebp:
         assert difference < 5
 
     def test_duration(self, tmp_path: Path) -> None:
+        out_webp = tmp_path / "temp.webp"
+
         with Image.open("Tests/images/dispose_bgnd.gif") as im:
             assert im.info["duration"] == 1000
-
-            out_webp = str(tmp_path / "temp.webp")
             im.save(out_webp, save_all=True)
 
         with Image.open(out_webp) as reloaded:
@@ -234,9 +247,10 @@ class TestFileWebp:
             assert reloaded.info["duration"] == 1000
 
     def test_roundtrip_rgba_palette(self, tmp_path: Path) -> None:
-        temp_file = str(tmp_path / "temp.webp")
+        temp_file = tmp_path / "temp.webp"
         im = Image.new("RGBA", (1, 1)).convert("P")
         assert im.mode == "P"
+        assert im.palette is not None
         assert im.palette.mode == "RGBA"
         im.save(temp_file)
 

Tests/test_file_webp_metadata.py

@@ -116,7 +116,15 @@ def test_read_no_exif() -> None:
 def test_getxmp() -> None:
     with Image.open("Tests/images/flower.webp") as im:
         assert "xmp" not in im.info
-        assert im.getxmp() == {}
+        if ElementTree is None:
+            with pytest.warns(
+                UserWarning,
+                match="XMP data cannot be read without defusedxml dependency",
+            ):
+                xmp = im.getxmp()
+        else:
+            xmp = im.getxmp()
+        assert xmp == {}
 
     with Image.open("Tests/images/flower2.webp") as im:
         if ElementTree is None:

Tests/test_image.py

@@ -42,6 +42,12 @@ try:
 except ImportError:
     ElementTree = None
 
+PrettyPrinter: type | None
+try:
+    from IPython.lib.pretty import PrettyPrinter
+except ImportError:
+    PrettyPrinter = None
+
 
 # Deprecation helper
 def helper_image_new(mode: str, size: tuple[int, int]) -> Image.Image:
@@ -91,16 +97,15 @@ class TestImage:
         # with pytest.raises(MemoryError):
         #   Image.new("L", (1000000, 1000000))
 
+    @pytest.mark.skipif(PrettyPrinter is None, reason="IPython is not installed")
     def test_repr_pretty(self) -> None:
-        class Pretty:
-            def text(self, text: str) -> None:
-                self.pretty_output = text
-
         im = Image.new("L", (100, 100))
 
-        p = Pretty()
+        output = io.StringIO()
+        assert PrettyPrinter is not None
+        p = PrettyPrinter(output)
         im._repr_pretty_(p, False)
-        assert p.pretty_output == "<PIL.Image.Image image mode=L size=100x100>"
+        assert output.getvalue() == "<PIL.Image.Image image mode=L size=100x100>"
 
     def test_open_formats(self) -> None:
         PNGFILE = "Tests/images/hopper.png"
@@ -700,6 +705,7 @@ class TestImage:
             assert new_image.size == image.size
             assert new_image.info == base_image.info
             if palette_result is not None:
+                assert new_image.palette is not None
                 assert new_image.palette.tobytes() == palette_result.tobytes()
             else:
                 assert new_image.palette is None
@@ -769,6 +775,22 @@ class TestImage:
         exif.load(b"Exif\x00\x00")
         assert not dict(exif)
 
+    def test_duplicate_exif_header(self) -> None:
+        with Image.open("Tests/images/exif.png") as im:
+            im.load()
+            im.info["exif"] = b"Exif\x00\x00" + im.info["exif"]
+
+            exif = im.getexif()
+        assert exif[274] == 1
+
+    def test_empty_get_ifd(self) -> None:
+        exif = Image.Exif()
+        ifd = exif.get_ifd(0x8769)
+        assert ifd == {}
+
+        ifd[36864] = b"0220"
+        assert exif.get_ifd(0x8769) == {36864: b"0220"}
+
     @mark_if_feature_version(
         pytest.mark.valgrind_known_error, "libjpeg_turbo", "2.0", reason="Known Failing"
     )
@@ -938,7 +960,15 @@ class TestImage:
 
     def test_empty_xmp(self) -> None:
         with Image.open("Tests/images/hopper.gif") as im:
-            assert im.getxmp() == {}
+            if ElementTree is None:
+                with pytest.warns(
+                    UserWarning,
+                    match="XMP data cannot be read without defusedxml dependency",
+                ):
+                    xmp = im.getxmp()
+            else:
+                xmp = im.getxmp()
+            assert xmp == {}
 
     def test_getxmp_padded(self) -> None:
         im = Image.new("RGB", (1, 1))
@@ -989,12 +1019,14 @@ class TestImage:
         # P mode with RGBA palette
         im = Image.new("RGBA", (1, 1)).convert("P")
         assert im.mode == "P"
+        assert im.palette is not None
         assert im.palette.mode == "RGBA"
         assert im.has_transparency_data
 
     def test_apply_transparency(self) -> None:
         im = Image.new("P", (1, 1))
         im.putpalette((0, 0, 0, 1, 1, 1))
+        assert im.palette is not None
         assert im.palette.colors == {(0, 0, 0): 0, (1, 1, 1): 1}
 
         # Test that no transformation is applied without transparency
@@ -1012,13 +1044,16 @@ class TestImage:
         im.putpalette((0, 0, 0, 255, 1, 1, 1, 128), "RGBA")
         im.info["transparency"] = 0
         im.apply_transparency()
+        assert im.palette is not None
         assert im.palette.colors == {(0, 0, 0, 0): 0, (1, 1, 1, 128): 1}
 
         # Test that transparency bytes are applied
         with Image.open("Tests/images/pil123p.png") as im:
             assert isinstance(im.info["transparency"], bytes)
+            assert im.palette is not None
             assert im.palette.colors[(27, 35, 6)] == 24
             im.apply_transparency()
+            assert im.palette is not None
             assert im.palette.colors[(27, 35, 6, 214)] == 24
 
     def test_constants(self) -> None:
@@ -1051,22 +1086,17 @@ class TestImage:
         valgrind pytest -qq Tests/test_image.py::TestImage::test_overrun | grep decode.c
         """
         with Image.open(os.path.join("Tests/images", path)) as im:
-            try:
+            with pytest.raises(OSError) as e:
                 im.load()
-                pytest.fail()
+        buffer_overrun = str(e.value) == "buffer overrun when reading image file"
-            except OSError as e:
+        truncated = "image file is truncated" in str(e.value)
-                buffer_overrun = str(e) == "buffer overrun when reading image file"
-                truncated = "image file is truncated" in str(e)
 
         assert buffer_overrun or truncated
 
     def test_fli_overrun2(self) -> None:
         with Image.open("Tests/images/fli_overrun2.bin") as im:
-            try:
+            with pytest.raises(OSError, match="buffer overrun when reading image file"):
                 im.seek(1)
-                pytest.fail()
-            except OSError as e:
-                assert str(e) == "buffer overrun when reading image file"
 
     def test_exit_fp(self) -> None:
         with Image.new("L", (1, 1)) as im:
@@ -1082,6 +1112,10 @@ class TestImage:
             assert len(caplog.records) == 0
             assert im.fp is None
 
+    def test_deprecation(self) -> None:
+        with pytest.warns(DeprecationWarning):
+            assert not Image.isImageType(None)
+
 
 class TestImageBytes:
     @pytest.mark.parametrize("mode", Image.MODES + ["BGR;15", "BGR;16", "BGR;24"])

Tests/test_image_array.py

@@ -24,7 +24,7 @@ def test_toarray() -> None:
 
     def test_with_dtype(dtype: npt.DTypeLike) -> None:
         ai = numpy.array(im, dtype=dtype)
-        assert ai.dtype == dtype
+        assert ai.dtype.type is dtype
 
     # assert test("1") == ((100, 128), '|b1', 1600))
     assert test("L") == ((100, 128), "|u1", 12800)
@@ -47,7 +47,7 @@ def test_toarray() -> None:
             with pytest.raises(OSError):
                 numpy.array(im_truncated)
         else:
-            with pytest.warns(UserWarning):
+            with pytest.warns(DeprecationWarning):
                 numpy.array(im_truncated)
 
 
@@ -113,4 +113,5 @@ def test_fromarray_palette() -> None:
     out = Image.fromarray(a, "P")
 
     # Assert that the Python and C palettes match
+    assert out.palette is not None
     assert len(out.palette.colors) == len(out.im.getpalette()) / 3

Tests/test_image_convert.py

@@ -218,6 +218,7 @@ def test_trns_RGB(tmp_path: Path) -> None:
 def test_l_macro_rounding(convert_mode: str) -> None:
     for mode in ("P", "PA"):
         im = Image.new(mode, (1, 1))
+        assert im.palette is not None
         im.palette.getcolor((0, 1, 2))
 
         converted_im = im.convert(convert_mode)

Tests/test_image_copy.py

@@ -49,5 +49,7 @@ def test_copy_zero() -> None:
 @skip_unless_feature("libtiff")
 def test_deepcopy() -> None:
     with Image.open("Tests/images/g4_orientation_5.tif") as im:
+        assert im.size == (590, 88)
+
         out = copy.deepcopy(im)
     assert out.size == (590, 88)

Tests/test_image_putpalette.py

@@ -86,6 +86,7 @@ def test_rgba_palette(mode: str, palette: tuple[int, ...]) -> None:
     im = Image.new("P", (1, 1))
     im.putpalette(palette, mode)
     assert im.getpalette() == [1, 2, 3]
+    assert im.palette is not None
     assert im.palette.colors == {(1, 2, 3, 4): 0}
 
 

Tests/test_image_quantize.py

@@ -69,6 +69,7 @@ def test_quantize_no_dither() -> None:
 
     converted = image.quantize(dither=Image.Dither.NONE, palette=palette)
     assert converted.mode == "P"
+    assert converted.palette is not None
     assert converted.palette.palette == palette.palette.palette
 
 
@@ -81,6 +82,7 @@ def test_quantize_no_dither2() -> None:
     palette.putpalette(data)
     quantized = im.quantize(dither=Image.Dither.NONE, palette=palette)
 
+    assert quantized.palette is not None
     assert tuple(quantized.palette.palette) == data
 
     px = quantized.load()
@@ -117,6 +119,7 @@ def test_colors() -> None:
     im = hopper()
     colors = 2
     converted = im.quantize(colors)
+    assert converted.palette is not None
     assert len(converted.palette.palette) == colors * len("RGB")
 
 
@@ -147,6 +150,7 @@ def test_palette(method: Image.Quantize, color: tuple[int, ...]) -> None:
     converted = im.quantize(method=method)
     converted_px = converted.load()
     assert converted_px is not None
+    assert converted.palette is not None
     assert converted_px[0, 0] == converted.palette.colors[color]
 
 

Tests/test_image_resize.py

@@ -300,9 +300,7 @@ class TestImageResize:
                 im.resize((10, 10), "unknown")
 
     @skip_unless_feature("libtiff")
-    def test_load_first(self) -> None:
+    def test_transposed(self) -> None:
-        # load() may change the size of the image
-        # Test that resize() is calling it before getting the size
         with Image.open("Tests/images/g4_orientation_5.tif") as im:
             im = im.resize((64, 64))
             assert im.size == (64, 64)

Tests/test_image_thumbnail.py

@@ -92,15 +92,13 @@ def test_no_resize() -> None:
 
 
 @skip_unless_feature("libtiff")
-def test_load_first() -> None:
+def test_transposed() -> None:
-    # load() may change the size of the image
-    # Test that thumbnail() is calling it before performing size calculations
     with Image.open("Tests/images/g4_orientation_5.tif") as im:
+        assert im.size == (590, 88)
+
         im.thumbnail((64, 64))
         assert im.size == (64, 10)
 
-    # Test thumbnail(), without draft(),
-    # on an image that is large enough once load() has changed the size
     with Image.open("Tests/images/g4_orientation_5.tif") as im:
         im.thumbnail((590, 88), reducing_gap=None)
         assert im.size == (590, 88)

Tests/test_imagecms.py

@@ -696,6 +696,12 @@ def test_rgb_lab(mode: str) -> None:
     assert value[:3] == (0, 255, 255)
 
 
+def test_cmyk_lab() -> None:
+    im = Image.new("CMYK", (1, 1))
+    converted_im = im.convert("LAB")
+    assert converted_im.getpixel((0, 0)) == (255, 128, 128)
+
+
 def test_deprecation() -> None:
     with pytest.warns(DeprecationWarning):
         assert ImageCms.DESCRIPTION.strip().startswith("pyCMS")

Tests/test_imagedraw.py

@@ -1368,6 +1368,20 @@ def test_stroke() -> None:
         )
 
 
+@skip_unless_feature("freetype2")
+def test_stroke_float() -> None:
+    # Arrange
+    im = Image.new("RGB", (120, 130))
+    draw = ImageDraw.Draw(im)
+    font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 120)
+
+    # Act
+    draw.text((12, 12), "A", "#f00", font, stroke_width=0.5)
+
+    # Assert
+    assert_image_similar_tofile(im, "Tests/images/imagedraw_stroke_float.png", 3.1)
+
+
 @skip_unless_feature("freetype2")
 def test_stroke_descender() -> None:
     # Arrange

Tests/test_imagefile.py

@@ -210,7 +210,7 @@ class MockPyDecoder(ImageFile.PyDecoder):
 
         super().__init__(mode, *args)
 
-    def decode(self, buffer: bytes) -> tuple[int, int]:
+    def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
         # eof
         return -1, 0
 
@@ -238,7 +238,9 @@ class MockImageFile(ImageFile.ImageFile):
         self.rawmode = "RGBA"
         self._mode = "RGBA"
         self._size = (200, 200)
-        self.tile = [("MOCK", (xoff, yoff, xoff + xsize, yoff + ysize), 32, None)]
+        self.tile = [
+            ImageFile._Tile("MOCK", (xoff, yoff, xoff + xsize, yoff + ysize), 32, None)
+        ]
 
 
 class CodecsTest:
@@ -268,7 +270,7 @@ class TestPyDecoder(CodecsTest):
         buf = BytesIO(b"\x00" * 255)
 
         im = MockImageFile(buf)
-        im.tile = [("MOCK", None, 32, None)]
+        im.tile = [ImageFile._Tile("MOCK", None, 32, None)]
 
         im.load()
 
@@ -281,12 +283,12 @@ class TestPyDecoder(CodecsTest):
         buf = BytesIO(b"\x00" * 255)
 
         im = MockImageFile(buf)
-        im.tile = [("MOCK", (xoff, yoff, -10, yoff + ysize), 32, None)]
+        im.tile = [ImageFile._Tile("MOCK", (xoff, yoff, -10, yoff + ysize), 32, None)]
 
         with pytest.raises(ValueError):
             im.load()
 
-        im.tile = [("MOCK", (xoff, yoff, xoff + xsize, -10), 32, None)]
+        im.tile = [ImageFile._Tile("MOCK", (xoff, yoff, xoff + xsize, -10), 32, None)]
         with pytest.raises(ValueError):
             im.load()
 
@@ -294,12 +296,20 @@ class TestPyDecoder(CodecsTest):
         buf = BytesIO(b"\x00" * 255)
 
         im = MockImageFile(buf)
-        im.tile = [("MOCK", (xoff, yoff, xoff + xsize + 100, yoff + ysize), 32, None)]
+        im.tile = [
+            ImageFile._Tile(
+                "MOCK", (xoff, yoff, xoff + xsize + 100, yoff + ysize), 32, None
+            )
+        ]
 
         with pytest.raises(ValueError):
             im.load()
 
-        im.tile = [("MOCK", (xoff, yoff, xoff + xsize, yoff + ysize + 100), 32, None)]
+        im.tile = [
+            ImageFile._Tile(
+                "MOCK", (xoff, yoff, xoff + xsize, yoff + ysize + 100), 32, None
+            )
+        ]
         with pytest.raises(ValueError):
             im.load()
 
@@ -336,7 +346,7 @@ class TestPyEncoder(CodecsTest):
         buf = BytesIO(b"\x00" * 255)
 
         im = MockImageFile(buf)
-        im.tile = [("MOCK", None, 32, None)]
+        im.tile = [ImageFile._Tile("MOCK", None, 32, None)]
 
         fp = BytesIO()
         ImageFile._save(im, fp, [ImageFile._Tile("MOCK", None, 0, "RGB")])
@@ -412,9 +422,8 @@ class TestPyEncoder(CodecsTest):
         with pytest.raises(NotImplementedError):
             encoder.encode_to_pyfd()
 
-        fh = BytesIO()
         with pytest.raises(NotImplementedError):
-            encoder.encode_to_file(fh, 0)
+            encoder.encode_to_file(0, 0)
 
     def test_zero_height(self) -> None:
         with pytest.raises(UnidentifiedImageError):

Tests/test_imagefont.py

@@ -5,6 +5,7 @@ import os
 import re
 import shutil
 import sys
+import tempfile
 from io import BytesIO
 from pathlib import Path
 from typing import Any, BinaryIO
@@ -460,17 +461,43 @@ def test_free_type_font_get_mask(font: ImageFont.FreeTypeFont) -> None:
     assert mask.size == (108, 13)
 
 
+def test_load_when_image_not_found() -> None:
+    with tempfile.NamedTemporaryFile(delete=False) as tmp:
+        pass
+    with pytest.raises(OSError) as e:
+        ImageFont.load(tmp.name)
+
+    os.unlink(tmp.name)
+
+    root = os.path.splitext(tmp.name)[0]
+    assert str(e.value) == f"cannot find glyph data file {root}.{{gif|pbm|png}}"
+
+
 def test_load_path_not_found() -> None:
     # Arrange
     filename = "somefilenamethatdoesntexist.ttf"
 
     # Act/Assert
-    with pytest.raises(OSError):
+    with pytest.raises(OSError) as e:
         ImageFont.load_path(filename)
+
+    # The file doesn't exist, so don't suggest `load`
+    assert filename in str(e.value)
+    assert "did you mean" not in str(e.value)
     with pytest.raises(OSError):
         ImageFont.truetype(filename)
 
 
+def test_load_path_existing_path() -> None:
+    with tempfile.NamedTemporaryFile() as tmp:
+        with pytest.raises(OSError) as e:
+            ImageFont.load_path(tmp.name)
+
+    # The file exists, so the error message suggests to use `load` instead
+    assert tmp.name in str(e.value)
+    assert " did you mean" in str(e.value)
+
+
 def test_load_non_font_bytes() -> None:
     with open("Tests/images/hopper.jpg", "rb") as f:
         with pytest.raises(OSError):
@@ -1113,6 +1140,9 @@ def test_bytes(font: ImageFont.FreeTypeFont) -> None:
     )
     assert font.getmask2(b"test")[1] == font.getmask2("test")[1]
 
+    with pytest.raises(TypeError):
+        font.getlength((0, 0))  # type: ignore[arg-type]
+
 
 @pytest.mark.parametrize(
     "test_file",
@@ -1147,3 +1177,15 @@ def test_invalid_truetype_sizes_raise_valueerror(
 ) -> None:
     with pytest.raises(ValueError):
         ImageFont.truetype(FONT_PATH, size, layout_engine=layout_engine)
+
+
+def test_freetype_deprecation(monkeypatch: pytest.MonkeyPatch) -> None:
+    # Arrange: mock features.version_module to return fake FreeType version
+    def fake_version_module(module: str) -> str:
+        return "2.9.0"
+
+    monkeypatch.setattr(features, "version_module", fake_version_module)
+
+    # Act / Assert
+    with pytest.warns(DeprecationWarning):
+        ImageFont.truetype(FONT_PATH, FONT_SIZE)

Tests/test_imageshow.py

@@ -115,7 +115,7 @@ def test_ipythonviewer() -> None:
             test_viewer = viewer
             break
     else:
-        pytest.fail()
+        pytest.fail("IPythonViewer not found")
 
     im = hopper()
     assert test_viewer.show(im) == 1

Tests/test_imagewin.py

@@ -60,6 +60,18 @@ class TestImageWinDib:
         with pytest.raises(ValueError):
             ImageWin.Dib(mode)
 
+    def test_dib_hwnd(self) -> None:
+        mode = "RGBA"
+        size = (128, 128)
+        wnd = 0
+
+        dib = ImageWin.Dib(mode, size)
+        hwnd = ImageWin.HWND(wnd)
+
+        dib.expose(hwnd)
+        dib.draw(hwnd, (0, 0) + size)
+        assert isinstance(dib.query_palette(hwnd), int)
+
     def test_dib_paste(self) -> None:
         # Arrange
         im = hopper()

Tests/test_numpy.py

@@ -238,8 +238,10 @@ def test_zero_size() -> None:
 
 
 @skip_unless_feature("libtiff")
-def test_load_first() -> None:
+def test_transposed() -> None:
     with Image.open("Tests/images/g4_orientation_5.tif") as im:
+        assert im.size == (590, 88)
+
         a = numpy.array(im)
         assert a.shape == (88, 590)
 

Tests/test_psdraw.py

@@ -5,8 +5,6 @@ import sys
 from io import BytesIO
 from pathlib import Path
 
-import pytest
-
 from PIL import Image, PSDraw
 
 
@@ -49,15 +47,14 @@ def test_draw_postscript(tmp_path: Path) -> None:
     assert os.path.getsize(tempfile) > 0
 
 
-@pytest.mark.parametrize("buffer", (True, False))
+def test_stdout() -> None:
-def test_stdout(buffer: bool) -> None:
     # Temporarily redirect stdout
     old_stdout = sys.stdout
 
     class MyStdOut:
         buffer = BytesIO()
 
-    mystdout: MyStdOut | BytesIO = MyStdOut() if buffer else BytesIO()
+    mystdout = MyStdOut()
 
     sys.stdout = mystdout
 
@@ -67,6 +64,4 @@ def test_stdout(buffer: bool) -> None:
     # Reset stdout
     sys.stdout = old_stdout
 
-    if isinstance(mystdout, MyStdOut):
+    assert mystdout.buffer.getvalue() != b""
-        mystdout = mystdout.buffer
-    assert mystdout.getvalue() != b""

Tests/test_qt_image_qapplication.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 from pathlib import Path
+from typing import TYPE_CHECKING, Union
 
 import pytest
 
@@ -8,6 +9,20 @@ from PIL import Image, ImageQt
 
 from .helper import assert_image_equal_tofile, assert_image_similar, hopper
 
+if TYPE_CHECKING:
+    import PyQt6
+    import PySide6
+
+    QApplication = Union[PyQt6.QtWidgets.QApplication, PySide6.QtWidgets.QApplication]
+    QHBoxLayout = Union[PyQt6.QtWidgets.QHBoxLayout, PySide6.QtWidgets.QHBoxLayout]
+    QImage = Union[PyQt6.QtGui.QImage, PySide6.QtGui.QImage]
+    QLabel = Union[PyQt6.QtWidgets.QLabel, PySide6.QtWidgets.QLabel]
+    QPainter = Union[PyQt6.QtGui.QPainter, PySide6.QtGui.QPainter]
+    QPixmap = Union[PyQt6.QtGui.QPixmap, PySide6.QtGui.QPixmap]
+    QPoint = Union[PyQt6.QtCore.QPoint, PySide6.QtCore.QPoint]
+    QRegion = Union[PyQt6.QtGui.QRegion, PySide6.QtGui.QRegion]
+    QWidget = Union[PyQt6.QtWidgets.QWidget, PySide6.QtWidgets.QWidget]
+
 if ImageQt.qt_is_installed:
     from PIL.ImageQt import QPixmap
 
@@ -20,7 +35,7 @@ if ImageQt.qt_is_installed:
         from PySide6.QtGui import QImage, QPainter, QRegion
         from PySide6.QtWidgets import QApplication, QHBoxLayout, QLabel, QWidget
 
-    class Example(QWidget):
+    class Example(QWidget):  # type: ignore[misc]
         def __init__(self) -> None:
             super().__init__()
 
@@ -28,11 +43,12 @@ if ImageQt.qt_is_installed:
 
             qimage = ImageQt.ImageQt(img)
 
-            pixmap1 = ImageQt.QPixmap.fromImage(qimage)
+            pixmap1 = getattr(ImageQt.QPixmap, "fromImage")(qimage)
 
-            QHBoxLayout(self)  # hbox
+            # hbox
+            QHBoxLayout(self)  # type: ignore[operator]
 
-            lbl = QLabel(self)
+            lbl = QLabel(self)  # type: ignore[operator]
             # Segfault in the problem
             lbl.setPixmap(pixmap1.copy())
 
@@ -46,7 +62,7 @@ def roundtrip(expected: Image.Image) -> None:
 @pytest.mark.skipif(not ImageQt.qt_is_installed, reason="Qt bindings are not installed")
 def test_sanity(tmp_path: Path) -> None:
     # Segfault test
-    app: QApplication | None = QApplication([])
+    app: QApplication | None = QApplication([])  # type: ignore[operator]
     ex = Example()
     assert app  # Silence warning
     assert ex  # Silence warning
@@ -56,7 +72,7 @@ def test_sanity(tmp_path: Path) -> None:
         im = hopper(mode)
         data = ImageQt.toqpixmap(im)
 
-        assert isinstance(data, QPixmap)
+        assert data.__class__.__name__ == "QPixmap"
         assert not data.isNull()
 
         # Test saving the file
@@ -64,14 +80,14 @@ def test_sanity(tmp_path: Path) -> None:
         data.save(tempfile)
 
         # Render the image
-        qimage = ImageQt.ImageQt(im)
+        imageqt = ImageQt.ImageQt(im)
-        data = QPixmap.fromImage(qimage)
+        data = getattr(QPixmap, "fromImage")(imageqt)
-        qt_format = QImage.Format if ImageQt.qt_version == "6" else QImage
+        qt_format = getattr(QImage, "Format") if ImageQt.qt_version == "6" else QImage
-        qimage = QImage(128, 128, qt_format.Format_ARGB32)
+        qimage = QImage(128, 128, getattr(qt_format, "Format_ARGB32"))  # type: ignore[operator]
-        painter = QPainter(qimage)
+        painter = QPainter(qimage)  # type: ignore[operator]
-        image_label = QLabel()
+        image_label = QLabel()  # type: ignore[operator]
         image_label.setPixmap(data)
-        image_label.render(painter, QPoint(0, 0), QRegion(0, 0, 128, 128))
+        image_label.render(painter, QPoint(0, 0), QRegion(0, 0, 128, 128))  # type: ignore[operator]
         painter.end()
         rendered_tempfile = str(tmp_path / f"temp_rendered_{mode}.png")
         qimage.save(rendered_tempfile)

Tests/test_qt_image_toqimage.py

@@ -21,7 +21,7 @@ def test_sanity(mode: str, tmp_path: Path) -> None:
     src = hopper(mode)
     data = ImageQt.toqimage(src)
 
-    assert isinstance(data, QImage)
+    assert isinstance(data, QImage)  # type: ignore[arg-type, misc]
     assert not data.isNull()
 
     # reload directly from the qimage

depends/install_imagequant.sh

@@ -2,7 +2,7 @@
 # install libimagequant
 
 archive_name=libimagequant
-archive_version=4.3.1
+archive_version=4.3.3
 
 archive=$archive_name-$archive_version
 
@@ -23,14 +23,14 @@ else
     cargo cinstall --prefix=/usr --destdir=.
 
     # Copy into place
-    sudo cp usr/lib/libimagequant.so* /usr/lib/
+    sudo find usr -name libimagequant.so* -exec cp {} /usr/lib/ \;
     sudo cp usr/include/libimagequant.h /usr/include/
 
     if [ -n "$GITHUB_ACTIONS" ]; then
         # Copy to cache
         rm -rf ~/cache-$archive_name
         mkdir ~/cache-$archive_name
-        cp usr/lib/libimagequant.so* ~/cache-$archive_name/
+        find usr -name libimagequant.so* -exec cp {} ~/cache-$archive_name/ \;
         cp usr/include/libimagequant.h ~/cache-$archive_name/
     fi
 

depends/install_raqm.sh

@@ -2,7 +2,7 @@
 # install raqm
 
 
-archive=libraqm-0.10.1
+archive=libraqm-0.10.2
 
 ./download-and-extract.sh $archive https://raw.githubusercontent.com/python-pillow/pillow-depends/main/$archive.tar.gz
 

docs/conf.py

@@ -121,7 +121,7 @@ nitpicky = True
 # generating warnings in “nitpicky mode”. Note that type should include the domain name
 # if present. Example entries would be ('py:func', 'int') or
 # ('envvar', 'LD_LIBRARY_PATH').
-# nitpick_ignore = []
+nitpick_ignore = [("py:class", "_io.BytesIO")]
 
 
 # -- Options for HTML output ----------------------------------------------

docs/deprecations.rst

@@ -109,6 +109,35 @@ ImageDraw.getdraw hints parameter
 
 The ``hints`` parameter in :py:meth:`~PIL.ImageDraw.getdraw()` has been deprecated.
 
+FreeType 2.9.0
+^^^^^^^^^^^^^^
+
+.. deprecated:: 11.0.0
+
+Support for FreeType 2.9.0 is deprecated and will be removed in Pillow 12.0.0
+(2025-10-15), when FreeType 2.9.1 will be the minimum supported.
+
+We recommend upgrading to at least FreeType `2.10.4`_, which fixed a severe
+vulnerability introduced in FreeType 2.6 (:cve:`2020-15999`).
+
+.. _2.10.4: https://sourceforge.net/projects/freetype/files/freetype2/2.10.4/
+
+ICNS (width, height, scale) sizes
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. deprecated:: 11.0.0
+
+Setting an ICNS image size to ``(width, height, scale)`` before loading has been
+deprecated. Instead, ``load(scale)`` can be used.
+
+Image isImageType()
+^^^^^^^^^^^^^^^^^^^
+
+.. deprecated:: 11.0.0
+
+``Image.isImageType(im)`` has been deprecated. Use ``isinstance(im, Image.Image)``
+instead.
+
 ImageMath.lambda_eval and ImageMath.unsafe_eval options parameter
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
@@ -142,6 +171,13 @@ Removed features
 Deprecated features are only removed in major releases after an appropriate
 period of deprecation has passed.
 
+TiffImagePlugin IFD_LEGACY_API
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. versionremoved:: 11.0.0
+
+``TiffImagePlugin.IFD_LEGACY_API`` was removed, as it was an unused setting.
+
 PSFile
 ~~~~~~
 

docs/example/DdsImagePlugin.py

@@ -246,7 +246,9 @@ class DdsImageFile(ImageFile.ImageFile):
             msg = f"Unimplemented pixel format {repr(fourcc)}"
             raise NotImplementedError(msg)
 
-        self.tile = [(self.decoder, (0, 0) + self.size, 0, (self.mode, 0, 1))]
+        self.tile = [
+            ImageFile._Tile(self.decoder, (0, 0) + self.size, 0, (self.mode, 0, 1))
+        ]
 
     def load_seek(self, pos: int) -> None:
         pass
@@ -255,7 +257,7 @@ class DdsImageFile(ImageFile.ImageFile):
 class DXT1Decoder(ImageFile.PyDecoder):
     _pulls_fd = True
 
-    def decode(self, buffer: bytes) -> tuple[int, int]:
+    def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
         assert self.fd is not None
         try:
             self.set_as_raw(_dxt1(self.fd, self.state.xsize, self.state.ysize))
@@ -268,7 +270,7 @@ class DXT1Decoder(ImageFile.PyDecoder):
 class DXT5Decoder(ImageFile.PyDecoder):
     _pulls_fd = True
 
-    def decode(self, buffer: bytes) -> tuple[int, int]:
+    def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
         assert self.fd is not None
         try:
             self.set_as_raw(_dxt5(self.fd, self.state.xsize, self.state.ysize))

docs/handbook/image-file-formats.rst

@@ -324,12 +324,19 @@ sets the following :py:attr:`~PIL.Image.Image.info` property:
 **sizes**
     A list of supported sizes found in this icon file; these are a
     3-tuple, ``(width, height, scale)``, where ``scale`` is 2 for a retina
-    icon and 1 for a standard icon.  You *are* permitted to use this 3-tuple
+    icon and 1 for a standard icon.
-    format for the :py:attr:`~PIL.Image.Image.size` property if you set it
+
-    before calling :py:meth:`~PIL.Image.Image.load`; after loading, the size
+.. _icns-loading:
-    will be reset to a 2-tuple containing pixel dimensions (so, e.g. if you
+
-    ask for ``(512, 512, 2)``, the final value of
+Loading
-    :py:attr:`~PIL.Image.Image.size` will be ``(1024, 1024)``).
+~~~~~~~
+
+You can call the :py:meth:`~PIL.Image.Image.load` method with the following parameter.
+
+**scale**
+    Affects the scale of the resultant image. If the size is set to ``(512, 512)``,
+    after loading at scale 2, the final value of :py:attr:`~PIL.Image.Image.size` will
+    be ``(1024, 1024)``.
 
 .. _icns-saving:
 

docs/index.rst

@@ -54,7 +54,7 @@ Pillow for enterprise is available via the Tidelift Subscription. `Learn more <h
    :alt: Tidelift
 
 .. image:: https://oss-fuzz-build-logs.storage.googleapis.com/badges/pillow.svg
-   :target: https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:pillow
+   :target: https://issues.oss-fuzz.com/issues?q=title:pillow
    :alt: Fuzzing Status
 
 .. image:: https://img.shields.io/pypi/v/pillow.svg

docs/installation/building-from-source.rst

@@ -64,7 +64,7 @@ Many of Pillow's features require external libraries:
 
 * **libimagequant** provides improved color quantization
 
-  * Pillow has been tested with libimagequant **2.6-4.3.1**
+  * Pillow has been tested with libimagequant **2.6-4.3.3**
   * Libimagequant is licensed GPLv3, which is more restrictive than
     the Pillow license, therefore we will not be distributing binaries
     with libimagequant support enabled.

docs/reference/Image.rst

@@ -362,6 +362,7 @@ Classes
     :undoc-members:
     :show-inheritance:
 .. autoclass:: PIL.Image.ImagePointHandler
+.. autoclass:: PIL.Image.ImagePointTransform
 .. autoclass:: PIL.Image.ImageTransformHandler
 
 Protocols

docs/reference/internal_modules.rst

@@ -33,6 +33,14 @@ Internal Modules
 Provides a convenient way to import type hints that are not available
 on some Python versions.
 
+.. py:class:: Buffer
+
+    Typing alias.
+
+.. py:class:: IntegralLike
+
+    Typing alias.
+
 .. py:class:: NumpyArray
 
     Typing alias.

docs/releasenotes/11.0.0.rst

@@ -23,6 +23,13 @@ Python 3.8
 Pillow has dropped support for Python 3.8,
 which reached end-of-life in October 2024.
 
+Python 3.12 on macOS <= 10.12
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The latest version of Python 3.12 only supports macOS versions 10.13 and later,
+and so Pillow has also updated the deployment target for its prebuilt Python 3.12
+wheels.
+
 PSFile
 ^^^^^^
 
@@ -40,12 +47,53 @@ removed. Pillow's C API will now be used on PyPy instead.
 ``Image.USE_CFFI_ACCESS``, for switching from the C API to PyAccess, was
 similarly removed.
 
+TiffImagePlugin IFD_LEGACY_API
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+An unused setting, ``TiffImagePlugin.IFD_LEGACY_API``, has been removed.
+
+WebP 0.4
+^^^^^^^^
+
+Support for WebP 0.4 and earlier has been removed; WebP 0.5 is the minimum supported.
+
 Deprecations
 ============
 
+FreeType 2.9.0
+^^^^^^^^^^^^^^
+
+.. deprecated:: 11.0.0
+
+Support for FreeType 2.9.0 is deprecated and will be removed in Pillow 12.0.0
+(2025-10-15), when FreeType 2.9.1 will be the minimum supported.
+
+We recommend upgrading to at least FreeType `2.10.4`_, which fixed a severe
+vulnerability introduced in FreeType 2.6 (:cve:`2020-15999`).
+
+.. _2.10.4: https://sourceforge.net/projects/freetype/files/freetype2/2.10.4/
+
+ICNS (width, height, scale) sizes
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. deprecated:: 11.0.0
+
+Setting an ICNS image size to ``(width, height, scale)`` before loading has been
+deprecated. Instead, ``load(scale)`` can be used.
+
+Image isImageType()
+^^^^^^^^^^^^^^^^^^^
+
+.. deprecated:: 11.0.0
+
+``Image.isImageType(im)`` has been deprecated. Use ``isinstance(im, Image.Image)``
+instead.
+
 ImageMath.lambda_eval and ImageMath.unsafe_eval options parameter
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
+.. deprecated:: 11.0.0
+
 The ``options`` parameter in :py:meth:`~PIL.ImageMath.lambda_eval()` and
 :py:meth:`~PIL.ImageMath.unsafe_eval()` has been deprecated. One or more
 keyword arguments can be used instead.
@@ -61,6 +109,8 @@ have been deprecated, and will be removed in Pillow 12 (2025-10-15).
 Specific WebP Feature Checks
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
+.. deprecated:: 11.0.0
+
 ``features.check("transp_webp")``, ``features.check("webp_mux")`` and
 ``features.check("webp_anim")`` are now deprecated. They will always return
 ``True`` if the WebP module is installed, until they are removed in Pillow
@@ -77,10 +127,18 @@ TODO
 API Additions
 =============
 
-TODO
+Writing XMP bytes to JPEG and MPO
-^^^^
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-TODO
+XMP data can now be saved to JPEG files using an ``xmp`` argument::
+
+    im.save("out.jpg", xmp=b"test")
+
+The data can also be set  through :py:attr:`~PIL.Image.Image.info`, for use when saving
+either JPEG or MPO images::
+
+    im.info["xmp"] = b"test"
+    im.save("out.jpg")
 
 Other Changes
 =============
@@ -94,6 +152,10 @@ of 3.13.0 final (2024-10-01, :pep:`719`).
 
 Pillow 11.0.0 now officially supports Python 3.13.
 
+Support has also been added for the experimental free-threaded mode of :pep:`703`.
+
+Python 3.13 only supports macOS versions 10.13 and later.
+
 C-level Flags
 ^^^^^^^^^^^^^
 

pyproject.toml

@@ -97,9 +97,13 @@ config-settings = "raqm=enable raqm=vendor fribidi=vendor imagequant=disable"
 test-command = "cd {project} && .github/workflows/wheels-test.sh"
 test-extras = "tests"
 
-[tool.ruff]
+[tool.black]
-fix = true
+exclude = "wheels/multibuild"
 
+[tool.ruff]
+exclude = [ "wheels/multibuild" ]
+
+fix = true
 lint.select = [
   "C4",     # flake8-comprehensions
   "E",      # pycodestyle errors
@@ -125,7 +129,6 @@ lint.ignore = [
   "PT007",  # pytest-parametrize-values-wrong-type
   "PT011",  # pytest-raises-too-broad
   "PT012",  # pytest-raises-with-multiple-statements
-  "PT016",  # pytest-fail-without-message
   "PT017",  # pytest-assert-in-except
   "PYI026", # flake8-pyi: typing.TypeAlias added in Python 3.10
   "PYI034", # flake8-pyi: typing.Self added in Python 3.11
@@ -163,8 +166,3 @@ follow_imports = "silent"
 warn_redundant_casts = true
 warn_unreachable = true
 warn_unused_ignores = true
-exclude = [
-  '^Tests/oss-fuzz/fuzz_font.py$',
-  '^Tests/oss-fuzz/fuzz_pillow.py$',
-  '^Tests/test_qt_image_qapplication.py$',
-]

selftest.py

@@ -52,7 +52,7 @@ def testimage() -> None:
     or you call the "load" method:
 
     >>> im = Image.open("Tests/images/hopper.ppm")
-    >>> print(im.im) # internal image attribute
+    >>> print(im._im) # internal image attribute
     None
     >>> a = im.load()
     >>> type(im.im) # doctest: +ELLIPSIS

setup.py

@@ -15,18 +15,20 @@ import struct
 import subprocess
 import sys
 import warnings
+from collections.abc import Iterator
+from typing import Any
 
 from setuptools import Extension, setup
 from setuptools.command.build_ext import build_ext
 
 
-def get_version():
+def get_version() -> str:
     version_file = "src/PIL/_version.py"
     with open(version_file, encoding="utf-8") as f:
         return f.read().split('"')[1]
 
 
-configuration = {}
+configuration: dict[str, list[str]] = {}
 
 
 PILLOW_VERSION = get_version()
@@ -143,7 +145,7 @@ class RequiredDependencyException(Exception):
 PLATFORM_MINGW = os.name == "nt" and "GCC" in sys.version
 
 
-def _dbg(s, tp=None):
+def _dbg(s: str, tp: Any = None) -> None:
     if DEBUG:
         if tp:
             print(s % tp)
@@ -151,10 +153,13 @@ def _dbg(s, tp=None):
         print(s)
 
 
-def _find_library_dirs_ldconfig():
+def _find_library_dirs_ldconfig() -> list[str]:
     # Based on ctypes.util from Python 2
 
     ldconfig = "ldconfig" if shutil.which("ldconfig") else "/sbin/ldconfig"
+    args: list[str]
+    env: dict[str, str]
+    expr: str
     if sys.platform.startswith("linux") or sys.platform.startswith("gnu"):
         if struct.calcsize("l") == 4:
             machine = os.uname()[4] + "-32"
@@ -184,13 +189,11 @@ def _find_library_dirs_ldconfig():
 
     try:
         p = subprocess.Popen(
-            args, stderr=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env
+            args, stderr=subprocess.DEVNULL, stdout=subprocess.PIPE, env=env, text=True
         )
     except OSError:  # E.g. command not found
         return []
-    [data, _] = p.communicate()
+    data = p.communicate()[0]
-    if isinstance(data, bytes):
-        data = data.decode("latin1")
 
     dirs = []
     for dll in re.findall(expr, data):
@@ -200,7 +203,9 @@ def _find_library_dirs_ldconfig():
     return dirs
 
 
-def _add_directory(path, subdir, where=None):
+def _add_directory(
+    path: list[str], subdir: str | None, where: int | None = None
+) -> None:
     if subdir is None:
         return
     subdir = os.path.realpath(subdir)
@@ -216,7 +221,7 @@ def _add_directory(path, subdir, where=None):
         path.insert(where, subdir)
 
 
-def _find_include_file(self, include):
+def _find_include_file(self: pil_build_ext, include: str) -> int:
     for directory in self.compiler.include_dirs:
         _dbg("Checking for include file %s in %s", (include, directory))
         if os.path.isfile(os.path.join(directory, include)):
@@ -225,7 +230,7 @@ def _find_include_file(self, include):
     return 0
 
 
-def _find_library_file(self, library):
+def _find_library_file(self: pil_build_ext, library: str) -> str | None:
     ret = self.compiler.find_library_file(self.compiler.library_dirs, library)
     if ret:
         _dbg("Found library %s at %s", (library, ret))
@@ -234,7 +239,7 @@ def _find_library_file(self, library):
     return ret
 
 
-def _find_include_dir(self, dirname, include):
+def _find_include_dir(self: pil_build_ext, dirname: str, include: str) -> bool | str:
     for directory in self.compiler.include_dirs:
         _dbg("Checking for include file %s in %s", (include, directory))
         if os.path.isfile(os.path.join(directory, include)):
@@ -245,6 +250,7 @@ def _find_include_dir(self, dirname, include):
         if os.path.isfile(os.path.join(subdir, include)):
             _dbg("Found %s in %s", (include, subdir))
             return subdir
+    return False
 
 
 def _cmd_exists(cmd: str) -> bool:
@@ -256,7 +262,7 @@ def _cmd_exists(cmd: str) -> bool:
     )
 
 
-def _pkg_config(name):
+def _pkg_config(name: str) -> tuple[list[str], list[str]] | None:
     command = os.environ.get("PKG_CONFIG", "pkg-config")
     for keep_system in (True, False):
         try:
@@ -283,10 +289,11 @@ def _pkg_config(name):
             return libs, cflags
         except Exception:
             pass
+    return None
 
 
 class pil_build_ext(build_ext):
-    class feature:
+    class ext_feature:
         features = [
             "zlib",
             "jpeg",
@@ -301,25 +308,32 @@ class pil_build_ext(build_ext):
         ]
 
         required = {"jpeg", "zlib"}
-        vendor = set()
+        vendor: set[str] = set()
 
-        def __init__(self):
+        def __init__(self) -> None:
+            self._settings: dict[str, str | bool | None] = {}
             for f in self.features:
-                setattr(self, f, None)
+                self.set(f, None)
 
-        def require(self, feat):
+        def require(self, feat: str) -> bool:
             return feat in self.required
 
-        def want(self, feat):
+        def get(self, feat: str) -> str | bool | None:
-            return getattr(self, feat) is None
+            return self._settings[feat]
 
-        def want_vendor(self, feat):
+        def set(self, feat: str, value: str | bool | None) -> None:
+            self._settings[feat] = value
+
+        def want(self, feat: str) -> bool:
+            return self._settings[feat] is None
+
+        def want_vendor(self, feat: str) -> bool:
             return feat in self.vendor
 
-        def __iter__(self):
+        def __iter__(self) -> Iterator[str]:
             yield from self.features
 
-    feature = feature()
+    feature = ext_feature()
 
     user_options = (
         build_ext.user_options
@@ -337,10 +351,10 @@ class pil_build_ext(build_ext):
     )
 
     @staticmethod
-    def check_configuration(option, value):
+    def check_configuration(option: str, value: str) -> bool | None:
         return True if value in configuration.get(option, []) else None
 
-    def initialize_options(self):
+    def initialize_options(self) -> None:
         self.disable_platform_guessing = self.check_configuration(
             "platform-guessing", "disable"
         )
@@ -355,7 +369,7 @@ class pil_build_ext(build_ext):
             self.debug = True
         self.parallel = configuration.get("parallel", [None])[-1]
 
-    def finalize_options(self):
+    def finalize_options(self) -> None:
         build_ext.finalize_options(self)
         if self.debug:
             global DEBUG
@@ -363,12 +377,16 @@ class pil_build_ext(build_ext):
         if not self.parallel:
             # If --parallel (or -j) wasn't specified, we want to reproduce the same
             # behavior as before, that is, auto-detect the number of jobs.
+            self.parallel = None
+
+            cpu_count = os.cpu_count()
+            if cpu_count is not None:
                 try:
                     self.parallel = int(
-                    os.environ.get("MAX_CONCURRENCY", min(4, os.cpu_count()))
+                        os.environ.get("MAX_CONCURRENCY", min(4, cpu_count))
                     )
                 except TypeError:
-                self.parallel = None
+                    pass
         for x in self.feature:
             if getattr(self, f"disable_{x}"):
                 setattr(self.feature, x, False)
@@ -402,7 +420,13 @@ class pil_build_ext(build_ext):
                 _dbg("Using vendored version of %s", x)
                 self.feature.vendor.add(x)
 
-    def _update_extension(self, name, libraries, define_macros=None, sources=None):
+    def _update_extension(
+        self,
+        name: str,
+        libraries: list[str] | list[str | bool | None],
+        define_macros: list[tuple[str, str | None]] | None = None,
+        sources: list[str] | None = None,
+    ) -> None:
         for extension in self.extensions:
             if extension.name == name:
                 extension.libraries += libraries
@@ -415,13 +439,13 @@ class pil_build_ext(build_ext):
                     extension.extra_link_args = ["--stdlib=libc++"]
                 break
 
-    def _remove_extension(self, name):
+    def _remove_extension(self, name: str) -> None:
         for extension in self.extensions:
             if extension.name == name:
                 self.extensions.remove(extension)
                 break
 
-    def get_macos_sdk_path(self):
+    def get_macos_sdk_path(self) -> str | None:
         try:
             sdk_path = (
                 subprocess.check_output(["xcrun", "--show-sdk-path"])
@@ -442,9 +466,9 @@ class pil_build_ext(build_ext):
                 sdk_path = commandlinetools_sdk_path
         return sdk_path
 
-    def build_extensions(self):
+    def build_extensions(self) -> None:
-        library_dirs = []
+        library_dirs: list[str] = []
-        include_dirs = []
+        include_dirs: list[str] = []
 
         pkg_config = None
         if _cmd_exists(os.environ.get("PKG_CONFIG", "pkg-config")):
@@ -468,19 +492,22 @@ class pil_build_ext(build_ext):
             root = globals()[root_name]
 
             if root is None and root_name in os.environ:
-                prefix = os.environ[root_name]
+                root_prefix = os.environ[root_name]
-                root = (os.path.join(prefix, "lib"), os.path.join(prefix, "include"))
+                root = (
+                    os.path.join(root_prefix, "lib"),
+                    os.path.join(root_prefix, "include"),
+                )
 
             if root is None and pkg_config:
-                if isinstance(lib_name, tuple):
+                if isinstance(lib_name, str):
+                    _dbg(f"Looking for `{lib_name}` using pkg-config.")
+                    root = pkg_config(lib_name)
+                else:
                     for lib_name2 in lib_name:
                         _dbg(f"Looking for `{lib_name2}` using pkg-config.")
                         root = pkg_config(lib_name2)
                         if root:
                             break
-                else:
-                    _dbg(f"Looking for `{lib_name}` using pkg-config.")
-                    root = pkg_config(lib_name)
 
             if isinstance(root, tuple):
                 lib_root, include_root = root
@@ -660,22 +687,22 @@ class pil_build_ext(build_ext):
             _dbg("Looking for zlib")
             if _find_include_file(self, "zlib.h"):
                 if _find_library_file(self, "z"):
-                    feature.zlib = "z"
+                    feature.set("zlib", "z")
                 elif sys.platform == "win32" and _find_library_file(self, "zlib"):
-                    feature.zlib = "zlib"  # alternative name
+                    feature.set("zlib", "zlib")  # alternative name
 
         if feature.want("jpeg"):
             _dbg("Looking for jpeg")
             if _find_include_file(self, "jpeglib.h"):
                 if _find_library_file(self, "jpeg"):
-                    feature.jpeg = "jpeg"
+                    feature.set("jpeg", "jpeg")
                 elif sys.platform == "win32" and _find_library_file(self, "libjpeg"):
-                    feature.jpeg = "libjpeg"  # alternative name
+                    feature.set("jpeg", "libjpeg")  # alternative name
 
-        feature.openjpeg_version = None
+        feature.set("openjpeg_version", None)
         if feature.want("jpeg2000"):
             _dbg("Looking for jpeg2000")
-            best_version = None
+            best_version: tuple[int, ...] | None = None
             best_path = None
 
             # Find the best version
@@ -705,26 +732,26 @@ class pil_build_ext(build_ext):
                 # <openjpeg.h> rather than having to cope with the versioned
                 # include path
                 _add_directory(self.compiler.include_dirs, best_path, 0)
-                feature.jpeg2000 = "openjp2"
+                feature.set("jpeg2000", "openjp2")
-                feature.openjpeg_version = ".".join(str(x) for x in best_version)
+                feature.set("openjpeg_version", ".".join(str(x) for x in best_version))
 
         if feature.want("imagequant"):
             _dbg("Looking for imagequant")
             if _find_include_file(self, "libimagequant.h"):
                 if _find_library_file(self, "imagequant"):
-                    feature.imagequant = "imagequant"
+                    feature.set("imagequant", "imagequant")
                 elif _find_library_file(self, "libimagequant"):
-                    feature.imagequant = "libimagequant"
+                    feature.set("imagequant", "libimagequant")
 
         if feature.want("tiff"):
             _dbg("Looking for tiff")
             if _find_include_file(self, "tiff.h"):
                 if _find_library_file(self, "tiff"):
-                    feature.tiff = "tiff"
+                    feature.set("tiff", "tiff")
                 if sys.platform in ["win32", "darwin"] and _find_library_file(
                     self, "libtiff"
                 ):
-                    feature.tiff = "libtiff"
+                    feature.set("tiff", "libtiff")
 
         if feature.want("freetype"):
             _dbg("Looking for freetype")
@@ -745,31 +772,31 @@ class pil_build_ext(build_ext):
                         freetype_version = 21
                         break
                 if freetype_version:
-                    feature.freetype = "freetype"
+                    feature.set("freetype", "freetype")
                     if subdir:
                         _add_directory(self.compiler.include_dirs, subdir, 0)
 
-        if feature.freetype and feature.want("raqm"):
+        if feature.get("freetype") and feature.want("raqm"):
             if not feature.want_vendor("raqm"):  # want system Raqm
                 _dbg("Looking for Raqm")
                 if _find_include_file(self, "raqm.h"):
                     if _find_library_file(self, "raqm"):
-                        feature.raqm = "raqm"
+                        feature.set("raqm", "raqm")
                     elif _find_library_file(self, "libraqm"):
-                        feature.raqm = "libraqm"
+                        feature.set("raqm", "libraqm")
             else:  # want to build Raqm from src/thirdparty
                 _dbg("Looking for HarfBuzz")
-                feature.harfbuzz = None
+                feature.set("harfbuzz", None)
                 hb_dir = _find_include_dir(self, "harfbuzz", "hb.h")
                 if hb_dir:
                     if isinstance(hb_dir, str):
                         _add_directory(self.compiler.include_dirs, hb_dir, 0)
                     if _find_library_file(self, "harfbuzz"):
-                        feature.harfbuzz = "harfbuzz"
+                        feature.set("harfbuzz", "harfbuzz")
-                if feature.harfbuzz:
+                if feature.get("harfbuzz"):
                     if not feature.want_vendor("fribidi"):  # want system FriBiDi
                         _dbg("Looking for FriBiDi")
-                        feature.fribidi = None
+                        feature.set("fribidi", None)
                         fribidi_dir = _find_include_dir(self, "fribidi", "fribidi.h")
                         if fribidi_dir:
                             if isinstance(fribidi_dir, str):
@@ -777,19 +804,19 @@ class pil_build_ext(build_ext):
                                     self.compiler.include_dirs, fribidi_dir, 0
                                 )
                             if _find_library_file(self, "fribidi"):
-                                feature.fribidi = "fribidi"
+                                feature.set("fribidi", "fribidi")
-                                feature.raqm = True
+                                feature.set("raqm", True)
                     else:  # want to build FriBiDi shim from src/thirdparty
-                        feature.raqm = True
+                        feature.set("raqm", True)
 
         if feature.want("lcms"):
             _dbg("Looking for lcms")
             if _find_include_file(self, "lcms2.h"):
                 if _find_library_file(self, "lcms2"):
-                    feature.lcms = "lcms2"
+                    feature.set("lcms", "lcms2")
                 elif _find_library_file(self, "lcms2_static"):
                     # alternate Windows name.
-                    feature.lcms = "lcms2_static"
+                    feature.set("lcms", "lcms2_static")
 
         if feature.want("webp"):
             _dbg("Looking for webp")
@@ -803,17 +830,17 @@ class pil_build_ext(build_ext):
                         _find_library_file(self, prefix + library)
                         for library in ("webp", "webpmux", "webpdemux")
                     ):
-                        feature.webp = prefix + "webp"
+                        feature.set("webp", prefix + "webp")
                         break
 
         if feature.want("xcb"):
             _dbg("Looking for xcb")
             if _find_include_file(self, "xcb/xcb.h"):
                 if _find_library_file(self, "xcb"):
-                    feature.xcb = "xcb"
+                    feature.set("xcb", "xcb")
 
         for f in feature:
-            if not getattr(feature, f) and feature.require(f):
+            if not feature.get(f) and feature.require(f):
                 if f in ("jpeg", "zlib"):
                     raise RequiredDependencyException(f)
                 raise DependencyException(f)
@@ -821,10 +848,11 @@ class pil_build_ext(build_ext):
         #
         # core library
 
-        libs = self.add_imaging_libs.split()
+        libs: list[str | bool | None] = []
-        defs = []
+        libs.extend(self.add_imaging_libs.split())
-        if feature.tiff:
+        defs: list[tuple[str, str | None]] = []
-            libs.append(feature.tiff)
+        if feature.get("tiff"):
+            libs.append(feature.get("tiff"))
             defs.append(("HAVE_LIBTIFF", None))
             if sys.platform == "win32":
                 # This define needs to be defined if-and-only-if it was defined
@@ -832,22 +860,22 @@ class pil_build_ext(build_ext):
                 # so we have to guess; by default it is defined in all Windows builds.
                 # See #4237, #5243, #5359 for more information.
                 defs.append(("USE_WIN32_FILEIO", None))
-        if feature.jpeg:
+        if feature.get("jpeg"):
-            libs.append(feature.jpeg)
+            libs.append(feature.get("jpeg"))
             defs.append(("HAVE_LIBJPEG", None))
-        if feature.jpeg2000:
+        if feature.get("jpeg2000"):
-            libs.append(feature.jpeg2000)
+            libs.append(feature.get("jpeg2000"))
             defs.append(("HAVE_OPENJPEG", None))
             if sys.platform == "win32" and not PLATFORM_MINGW:
                 defs.append(("OPJ_STATIC", None))
-        if feature.zlib:
+        if feature.get("zlib"):
-            libs.append(feature.zlib)
+            libs.append(feature.get("zlib"))
             defs.append(("HAVE_LIBZ", None))
-        if feature.imagequant:
+        if feature.get("imagequant"):
-            libs.append(feature.imagequant)
+            libs.append(feature.get("imagequant"))
             defs.append(("HAVE_LIBIMAGEQUANT", None))
-        if feature.xcb:
+        if feature.get("xcb"):
-            libs.append(feature.xcb)
+            libs.append(feature.get("xcb"))
             defs.append(("HAVE_XCB", None))
         if sys.platform == "win32":
             libs.extend(["kernel32", "user32", "gdi32"])
@@ -861,22 +889,22 @@ class pil_build_ext(build_ext):
         #
         # additional libraries
 
-        if feature.freetype:
+        if feature.get("freetype"):
             srcs = []
             libs = ["freetype"]
             defs = []
-            if feature.raqm:
+            if feature.get("raqm"):
                 if not feature.want_vendor("raqm"):  # using system Raqm
                     defs.append(("HAVE_RAQM", None))
                     defs.append(("HAVE_RAQM_SYSTEM", None))
-                    libs.append(feature.raqm)
+                    libs.append(feature.get("raqm"))
                 else:  # building Raqm from src/thirdparty
                     defs.append(("HAVE_RAQM", None))
                     srcs.append("src/thirdparty/raqm/raqm.c")
-                    libs.append(feature.harfbuzz)
+                    libs.append(feature.get("harfbuzz"))
                     if not feature.want_vendor("fribidi"):  # using system FriBiDi
                         defs.append(("HAVE_FRIBIDI_SYSTEM", None))
-                        libs.append(feature.fribidi)
+                        libs.append(feature.get("fribidi"))
                     else:  # building FriBiDi shim from src/thirdparty
                         srcs.append("src/thirdparty/fribidi-shim/fribidi.c")
             self._update_extension("PIL._imagingft", libs, defs, srcs)
@@ -884,16 +912,17 @@ class pil_build_ext(build_ext):
         else:
             self._remove_extension("PIL._imagingft")
 
-        if feature.lcms:
+        if feature.get("lcms"):
-            extra = []
+            libs = [feature.get("lcms")]
             if sys.platform == "win32":
-                extra.extend(["user32", "gdi32"])
+                libs.extend(["user32", "gdi32"])
-            self._update_extension("PIL._imagingcms", [feature.lcms] + extra)
+            self._update_extension("PIL._imagingcms", libs)
         else:
             self._remove_extension("PIL._imagingcms")
 
-        if feature.webp:
+        webp = feature.get("webp")
-            libs = [feature.webp, feature.webp + "mux", feature.webp + "demux"]
+        if isinstance(webp, str):
+            libs = [webp, webp + "mux", webp + "demux"]
             self._update_extension("PIL._webp", libs)
         else:
             self._remove_extension("PIL._webp")
@@ -908,14 +937,14 @@ class pil_build_ext(build_ext):
 
         self.summary_report(feature)
 
-    def summary_report(self, feature):
+    def summary_report(self, feature: ext_feature) -> None:
         print("-" * 68)
         print("PIL SETUP SUMMARY")
         print("-" * 68)
         print(f"version      Pillow {PILLOW_VERSION}")
-        v = sys.version.split("[")
+        version = sys.version.split("[")
-        print(f"platform     {sys.platform} {v[0].strip()}")
+        print(f"platform     {sys.platform} {version[0].strip()}")
-        for v in v[1:]:
+        for v in version[1:]:
             print(f"             [{v.strip()}")
         print("-" * 68)
 
@@ -926,16 +955,20 @@ class pil_build_ext(build_ext):
                 raqm_extra_info += ", FriBiDi shim"
 
         options = [
-            (feature.jpeg, "JPEG"),
+            (feature.get("jpeg"), "JPEG"),
-            (feature.jpeg2000, "OPENJPEG (JPEG2000)", feature.openjpeg_version),
+            (
-            (feature.zlib, "ZLIB (PNG/ZIP)"),
+                feature.get("jpeg2000"),
-            (feature.imagequant, "LIBIMAGEQUANT"),
+                "OPENJPEG (JPEG2000)",
-            (feature.tiff, "LIBTIFF"),
+                feature.get("openjpeg_version"),
-            (feature.freetype, "FREETYPE2"),
+            ),
-            (feature.raqm, "RAQM (Text shaping)", raqm_extra_info),
+            (feature.get("zlib"), "ZLIB (PNG/ZIP)"),
-            (feature.lcms, "LITTLECMS2"),
+            (feature.get("imagequant"), "LIBIMAGEQUANT"),
-            (feature.webp, "WEBP"),
+            (feature.get("tiff"), "LIBTIFF"),
-            (feature.xcb, "XCB (X protocol)"),
+            (feature.get("freetype"), "FREETYPE2"),
+            (feature.get("raqm"), "RAQM (Text shaping)", raqm_extra_info),
+            (feature.get("lcms"), "LITTLECMS2"),
+            (feature.get("webp"), "WEBP"),
+            (feature.get("xcb"), "XCB (X protocol)"),
         ]
 
         all = 1
@@ -964,7 +997,7 @@ class pil_build_ext(build_ext):
         print("")
 
 
-def debug_build():
+def debug_build() -> bool:
     return hasattr(sys, "gettotalrefcount") or FUZZING_BUILD
 
 

src/PIL/BlpImagePlugin.py

@@ -273,13 +273,13 @@ class BlpImageFile(ImageFile.ImageFile):
             raise BLPFormatError(msg)
 
         self._mode = "RGBA" if self._blp_alpha_depth else "RGB"
-        self.tile = [(decoder, (0, 0) + self.size, 0, (self.mode, 0, 1))]
+        self.tile = [ImageFile._Tile(decoder, (0, 0) + self.size, 0, (self.mode, 0, 1))]
 
 
 class _BLPBaseDecoder(ImageFile.PyDecoder):
     _pulls_fd = True
 
-    def decode(self, buffer: bytes) -> tuple[int, int]:
+    def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
         try:
             self._read_blp_header()
             self._load()
@@ -372,7 +372,10 @@ class BLP1Decoder(_BLPBaseDecoder):
         Image._decompression_bomb_check(image.size)
         if image.mode == "CMYK":
             decoder_name, extents, offset, args = image.tile[0]
-            image.tile = [(decoder_name, extents, offset, (args[0], "CMYK"))]
+            assert isinstance(args, tuple)
+            image.tile = [
+                ImageFile._Tile(decoder_name, extents, offset, (args[0], "CMYK"))
+            ]
         r, g, b = image.convert("RGB").split()
         reversed_image = Image.merge("RGB", (b, g, r))
         self.set_as_raw(reversed_image.tobytes())
@@ -467,6 +470,7 @@ def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
     magic = b"BLP1" if im.encoderinfo.get("blp_version") == "BLP1" else b"BLP2"
     fp.write(magic)
 
+    assert im.palette is not None
     fp.write(struct.pack("<i", 1))  # Uncompressed or DirectX compression
     fp.write(struct.pack("<b", Encoding.UNCOMPRESSED))
     fp.write(struct.pack("<b", 1 if im.palette.mode == "RGBA" else 0))

src/PIL/BmpImagePlugin.py

@@ -170,6 +170,8 @@ class BmpImageFile(ImageFile.ImageFile):
 
         # ------------------ Special case : header is reported 40, which
         # ---------------------- is shorter than real size for bpp >= 16
+        assert isinstance(file_info["width"], int)
+        assert isinstance(file_info["height"], int)
         self._size = file_info["width"], file_info["height"]
 
         # ------- If color count was not found in the header, compute from bits
@@ -294,7 +296,7 @@ class BmpImageFile(ImageFile.ImageFile):
             args.append(((file_info["width"] * file_info["bits"] + 31) >> 3) & (~3))
         args.append(file_info["direction"])
         self.tile = [
-            (
+            ImageFile._Tile(
                 decoder_name,
                 (0, 0, file_info["width"], file_info["height"]),
                 offset or self.fp.tell(),
@@ -319,7 +321,7 @@ class BmpImageFile(ImageFile.ImageFile):
 class BmpRleDecoder(ImageFile.PyDecoder):
     _pulls_fd = True
 
-    def decode(self, buffer: bytes) -> tuple[int, int]:
+    def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
         assert self.fd is not None
         rle4 = self.args[1]
         data = bytearray()
@@ -385,7 +387,7 @@ class BmpRleDecoder(ImageFile.PyDecoder):
                     if self.fd.tell() % 2 != 0:
                         self.fd.seek(1, os.SEEK_CUR)
         rawmode = "L" if self.mode == "L" else "P"
-        self.set_as_raw(bytes(data), (rawmode, 0, self.args[-1]))
+        self.set_as_raw(bytes(data), rawmode, (0, self.args[-1]))
         return -1, 0
 
 

src/PIL/CurImagePlugin.py

@@ -17,7 +17,7 @@
 #
 from __future__ import annotations
 
-from . import BmpImagePlugin, Image
+from . import BmpImagePlugin, Image, ImageFile
 from ._binary import i16le as i16
 from ._binary import i32le as i32
 
@@ -64,7 +64,7 @@ class CurImageFile(BmpImagePlugin.BmpImageFile):
         # patch up the bitmap height
         self._size = self.size[0], self.size[1] // 2
         d, e, o, a = self.tile[0]
-        self.tile[0] = d, (0, 0) + self.size, o, a
+        self.tile[0] = ImageFile._Tile(d, (0, 0) + self.size, o, a)
 
 
 #

src/PIL/DdsImagePlugin.py

@@ -367,7 +367,7 @@ class DdsImageFile(ImageFile.ImageFile):
                 mask_count = 3
 
             masks = struct.unpack(f"<{mask_count}I", header.read(mask_count * 4))
-            self.tile = [("dds_rgb", extents, 0, (bitcount, masks))]
+            self.tile = [ImageFile._Tile("dds_rgb", extents, 0, (bitcount, masks))]
             return
         elif pfflags & DDPF.LUMINANCE:
             if bitcount == 8:
@@ -481,7 +481,7 @@ class DdsImageFile(ImageFile.ImageFile):
 class DdsRgbDecoder(ImageFile.PyDecoder):
     _pulls_fd = True
 
-    def decode(self, buffer: bytes) -> tuple[int, int]:
+    def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
         assert self.fd is not None
         bitcount, masks = self.args
 

src/PIL/EpsImagePlugin.py

@@ -71,7 +71,7 @@ def Ghostscript(
     fp: IO[bytes],
     scale: int = 1,
     transparency: bool = False,
-) -> Image.Image:
+) -> Image.core.ImagingCore:
     """Render an image using Ghostscript"""
     global gs_binary
     if not has_ghostscript():
@@ -190,7 +190,6 @@ class EpsImageFile(ImageFile.ImageFile):
         self.fp.seek(offset)
 
         self._mode = "RGB"
-        self._size = None
 
         byte_arr = bytearray(255)
         bytes_mv = memoryview(byte_arr)
@@ -228,7 +227,7 @@ class EpsImageFile(ImageFile.ImageFile):
             if k == "BoundingBox":
                 if v == "(atend)":
                     reading_trailer_comments = True
-                elif not self._size or (trailer_reached and reading_trailer_comments):
+                elif not self.tile or (trailer_reached and reading_trailer_comments):
                     try:
                         # Note: The DSC spec says that BoundingBox
                         # fields should be integers, but some drivers
@@ -346,7 +345,7 @@ class EpsImageFile(ImageFile.ImageFile):
                 trailer_reached = True
             bytes_read = 0
 
-        if not self._size:
+        if not self.tile:
             msg = "cannot determine EPS bounding box"
             raise OSError(msg)
 

src/PIL/FitsImagePlugin.py

@@ -67,7 +67,7 @@ class FitsImageFile(ImageFile.ImageFile):
             raise ValueError(msg)
 
         offset += self.fp.tell() - 80
-        self.tile = [(decoder_name, (0, 0) + self.size, offset, args)]
+        self.tile = [ImageFile._Tile(decoder_name, (0, 0) + self.size, offset, args)]
 
     def _get_size(
         self, headers: dict[bytes, bytes], prefix: bytes
@@ -126,7 +126,7 @@ class FitsImageFile(ImageFile.ImageFile):
 class FitsGzipDecoder(ImageFile.PyDecoder):
     _pulls_fd = True
 
-    def decode(self, buffer: bytes) -> tuple[int, int]:
+    def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
         assert self.fd is not None
         value = gzip.decompress(self.fd.read())
 

src/PIL/FliImagePlugin.py

@@ -159,7 +159,7 @@ class FliImageFile(ImageFile.ImageFile):
         framesize = i32(s)
 
         self.decodermaxblock = framesize
-        self.tile = [("fli", (0, 0) + self.size, self.__offset, None)]
+        self.tile = [ImageFile._Tile("fli", (0, 0) + self.size, self.__offset, None)]
 
         self.__offset += framesize
 

src/PIL/FpxImagePlugin.py

@@ -81,6 +81,8 @@ class FpxImageFile(ImageFile.ImageFile):
 
         # size (highest resolution)
 
+        assert isinstance(prop[0x1000002], int)
+        assert isinstance(prop[0x1000003], int)
         self._size = prop[0x1000002], prop[0x1000003]
 
         size = max(self.size)
@@ -164,7 +166,7 @@ class FpxImageFile(ImageFile.ImageFile):
 
             if compression == 0:
                 self.tile.append(
-                    (
+                    ImageFile._Tile(
                         "raw",
                         (x, y, x1, y1),
                         i32(s, i) + 28,
@@ -175,7 +177,7 @@ class FpxImageFile(ImageFile.ImageFile):
             elif compression == 1:
                 # FIXME: the fill decoder is not implemented
                 self.tile.append(
-                    (
+                    ImageFile._Tile(
                         "fill",
                         (x, y, x1, y1),
                         i32(s, i) + 28,
@@ -203,7 +205,7 @@ class FpxImageFile(ImageFile.ImageFile):
                     jpegmode = rawmode
 
                 self.tile.append(
-                    (
+                    ImageFile._Tile(
                         "jpeg",
                         (x, y, x1, y1),
                         i32(s, i) + 28,

src/PIL/FtexImagePlugin.py

@@ -93,9 +93,9 @@ class FtexImageFile(ImageFile.ImageFile):
 
         if format == Format.DXT1:
             self._mode = "RGBA"
-            self.tile = [("bcn", (0, 0) + self.size, 0, 1)]
+            self.tile = [ImageFile._Tile("bcn", (0, 0) + self.size, 0, (1,))]
         elif format == Format.UNCOMPRESSED:
-            self.tile = [("raw", (0, 0) + self.size, 0, ("RGB", 0, 1))]
+            self.tile = [ImageFile._Tile("raw", (0, 0) + self.size, 0, ("RGB", 0, 1))]
         else:
             msg = f"Invalid texture compression format: {repr(format)}"
             raise ValueError(msg)

src/PIL/GbrImagePlugin.py

@@ -89,7 +89,7 @@ class GbrImageFile(ImageFile.ImageFile):
         self._data_size = width * height * color_depth
 
     def load(self) -> Image.core.PixelAccess | None:
-        if not self.im:
+        if self._im is None:
             self.im = Image.core.new(self.mode, self.size)
             self.frombytes(self.fp.read(self._data_size))
         return Image.Image.load(self)

src/PIL/GdImageFile.py

@@ -72,7 +72,7 @@ class GdImageFile(ImageFile.ImageFile):
         )
 
         self.tile = [
-            (
+            ImageFile._Tile(
                 "raw",
                 (0, 0) + self.size,
                 7 + true_color_offset + 4 + 256 * 4,

src/PIL/GifImagePlugin.py

@@ -29,7 +29,6 @@ import itertools
 import math
 import os
 import subprocess
-import sys
 from enum import IntEnum
 from functools import cached_property
 from typing import IO, TYPE_CHECKING, Any, Literal, NamedTuple, Union
@@ -49,6 +48,7 @@ from ._binary import o16le as o16
 
 if TYPE_CHECKING:
     from . import _imaging
+    from ._typing import Buffer
 
 
 class LoadingStrategy(IntEnum):
@@ -155,7 +155,7 @@ class GifImageFile(ImageFile.ImageFile):
         if not self._seek_check(frame):
             return
         if frame < self.__frame:
-            self.im = None
+            self._im = None
             self._seek(0)
 
         last_frame = self.__frame
@@ -320,11 +320,14 @@ class GifImageFile(ImageFile.ImageFile):
             else:
                 self._mode = "L"
 
-            if not palette and self.global_palette:
+            if palette:
+                self.palette = palette
+            elif self.global_palette:
                 from copy import copy
 
-                palette = copy(self.global_palette)
+                self.palette = copy(self.global_palette)
-            self.palette = palette
+            else:
+                self.palette = None
         else:
             if self.mode == "P":
                 if (
@@ -376,7 +379,7 @@ class GifImageFile(ImageFile.ImageFile):
                     self.dispose = Image.core.fill(dispose_mode, dispose_size, color)
                 else:
                     # replace with previous contents
-                    if self.im is not None:
+                    if self._im is not None:
                         # only dispose the extent in this frame
                         self.dispose = self._crop(self.im, self.dispose_extent)
                     elif frame_transparency is not None:
@@ -404,7 +407,7 @@ class GifImageFile(ImageFile.ImageFile):
                 elif self.mode not in ("RGB", "RGBA"):
                     transparency = frame_transparency
             self.tile = [
-                (
+                ImageFile._Tile(
                     "gif",
                     (x0, y0, x1, y1),
                     self.__offset,
@@ -434,7 +437,14 @@ class GifImageFile(ImageFile.ImageFile):
                 self.im = Image.core.fill("P", self.size, self._frame_transparency or 0)
                 self.im.putpalette("RGB", *self._frame_palette.getdata())
             else:
-                self.im = None
+                self._im = None
+        if not self._prev_im and self._im is not None and self.size != self.im.size:
+            expanded_im = Image.core.fill(self.im.mode, self.size)
+            if self._frame_palette:
+                expanded_im.putpalette("RGB", *self._frame_palette.getdata())
+            expanded_im.paste(self.im, (0, 0) + self.im.size)
+
+            self.im = expanded_im
         self._mode = temp_mode
         self._frame_palette = None
 
@@ -452,6 +462,17 @@ class GifImageFile(ImageFile.ImageFile):
             return
         if not self._prev_im:
             return
+        if self.size != self._prev_im.size:
+            if self._frame_transparency is not None:
+                expanded_im = Image.core.fill("RGBA", self.size)
+            else:
+                expanded_im = Image.core.fill("P", self.size)
+                expanded_im.putpalette("RGB", "RGB", self.im.getpalette())
+                expanded_im = expanded_im.convert("RGB")
+            expanded_im.paste(self._prev_im, (0, 0) + self._prev_im.size)
+
+            self._prev_im = expanded_im
+            assert self._prev_im is not None
         if self._frame_transparency is not None:
             self.im.putpalettealpha(self._frame_transparency, 0)
             frame_im = self.im.convert("RGBA")
@@ -495,6 +516,7 @@ def _normalize_mode(im: Image.Image) -> Image.Image:
         return im
     if Image.getmodebase(im.mode) == "RGB":
         im = im.convert("P", palette=Image.Palette.ADAPTIVE)
+        assert im.palette is not None
         if im.palette.mode == "RGBA":
             for rgba in im.palette.colors:
                 if rgba[3] == 0:
@@ -531,16 +553,18 @@ def _normalize_palette(
 
     if im.mode == "P":
         if not source_palette:
-            source_palette = im.im.getpalette("RGB")[:768]
+            im_palette = im.getpalette(None)
+            assert im_palette is not None
+            source_palette = bytearray(im_palette)
     else:  # L-mode
         if not source_palette:
             source_palette = bytearray(i // 3 for i in range(768))
         im.palette = ImagePalette.ImagePalette("RGB", palette=source_palette)
-
-    used_palette_colors: list[int] | None
-    if palette:
-        used_palette_colors = []
     assert source_palette is not None
+
+    if palette:
+        used_palette_colors: list[int | None] = []
+        assert im.palette is not None
         for i in range(0, len(source_palette), 3):
             source_color = tuple(source_palette[i : i + 3])
             index = im.palette.colors.get(source_color)
@@ -553,20 +577,25 @@ def _normalize_palette(
                     if j not in used_palette_colors:
                         used_palette_colors[i] = j
                         break
-        im = im.remap_palette(used_palette_colors)
+        dest_map: list[int] = []
+        for index in used_palette_colors:
+            assert index is not None
+            dest_map.append(index)
+        im = im.remap_palette(dest_map)
     else:
-        used_palette_colors = _get_optimize(im, info)
+        optimized_palette_colors = _get_optimize(im, info)
-        if used_palette_colors is not None:
+        if optimized_palette_colors is not None:
-            im = im.remap_palette(used_palette_colors, source_palette)
+            im = im.remap_palette(optimized_palette_colors, source_palette)
             if "transparency" in info:
                 try:
-                    info["transparency"] = used_palette_colors.index(
+                    info["transparency"] = optimized_palette_colors.index(
                         info["transparency"]
                     )
                 except ValueError:
                     del info["transparency"]
             return im
 
+    assert im.palette is not None
     im.palette.palette = source_palette
     return im
 
@@ -578,6 +607,7 @@ def _write_single_frame(
 ) -> None:
     im_out = _normalize_mode(im)
     for k, v in im_out.info.items():
+        if isinstance(k, str):
             im.encoderinfo.setdefault(k, v)
     im_out = _normalize_palette(im_out, palette, im.encoderinfo)
 
@@ -601,7 +631,10 @@ def _write_single_frame(
 def _getbbox(
     base_im: Image.Image, im_frame: Image.Image
 ) -> tuple[Image.Image, tuple[int, int, int, int] | None]:
-    if _get_palette_bytes(im_frame) != _get_palette_bytes(base_im):
+    palette_bytes = [
+        bytes(im.palette.palette) if im.palette else b"" for im in (base_im, im_frame)
+    ]
+    if palette_bytes[0] != palette_bytes[1]:
         im_frame = im_frame.convert("RGBA")
         base_im = base_im.convert("RGBA")
     delta = ImageChops.subtract_modulo(im_frame, base_im)
@@ -632,6 +665,7 @@ def _write_multiple_frames(
                 for k, v in im_frame.info.items():
                     if k == "transparency":
                         continue
+                    if isinstance(k, str):
                         im.encoderinfo.setdefault(k, v)
 
             encoderinfo = im.encoderinfo.copy()
@@ -662,10 +696,12 @@ def _write_multiple_frames(
                         )
                         background = _get_background(im_frame, color)
                         background_im = Image.new("P", im_frame.size, background)
+                        assert im_frames[0].im.palette is not None
                         background_im.putpalette(im_frames[0].im.palette)
                     bbox = _getbbox(background_im, im_frame)[1]
                 elif encoderinfo.get("optimize") and im_frame.mode != "1":
                     if "transparency" not in encoderinfo:
+                        assert im_frame.palette is not None
                         try:
                             encoderinfo["transparency"] = (
                                 im_frame.palette._new_color_index(im_frame)
@@ -903,6 +939,7 @@ def _get_optimize(im: Image.Image, info: dict[str, Any]) -> list[int] | None:
             if optimise or max(used_palette_colors) >= len(used_palette_colors):
                 return used_palette_colors
 
+            assert im.palette is not None
             num_palette_colors = len(im.palette.palette) // Image.getmodebands(
                 im.palette.mode
             )
@@ -952,7 +989,13 @@ def _get_palette_bytes(im: Image.Image) -> bytes:
     :param im: Image object
     :returns: Bytes, len<=768 suitable for inclusion in gif header
     """
-    return im.palette.palette if im.palette else b""
+    if not im.palette:
+        return b""
+
+    palette = bytes(im.palette.palette)
+    if im.palette.mode == "RGBA":
+        palette = b"".join(palette[i * 4 : i * 4 + 3] for i in range(len(palette) // 3))
+    return palette
 
 
 def _get_background(
@@ -965,6 +1008,7 @@ def _get_background(
             # WebPImagePlugin stores an RGBA value in info["background"]
             # So it must be converted to the same format as GifImagePlugin's
             # info["background"] - a global color table index
+            assert im.palette is not None
             try:
                 background = im.palette.getcolor(info_background, im)
             except ValueError as e:
@@ -1124,19 +1168,10 @@ def getdata(
     class Collector(BytesIO):
         data = []
 
-        if sys.version_info >= (3, 12):
-            from collections.abc import Buffer
-
         def write(self, data: Buffer) -> int:
             self.data.append(data)
             return len(data)
 
-        else:
-
-            def write(self, data: Any) -> int:
-                self.data.append(data)
-                return len(data)
-
     im.load()  # make sure raster data is available
 
     fp = Collector()

src/PIL/IcnsImagePlugin.py

@@ -25,6 +25,7 @@ import sys
 from typing import IO
 
 from . import Image, ImageFile, PngImagePlugin, features
+from ._deprecate import deprecate
 
 enable_jpeg2k = features.check_codec("jpg_2000")
 if enable_jpeg2k:
@@ -275,40 +276,40 @@ class IcnsImageFile(ImageFile.ImageFile):
             self.best_size[1] * self.best_size[2],
         )
 
-    @property
+    @property  # type: ignore[override]
-    def size(self):
+    def size(self) -> tuple[int, int] | tuple[int, int, int]:
         return self._size
 
     @size.setter
-    def size(self, value) -> None:
+    def size(self, value: tuple[int, int] | tuple[int, int, int]) -> None:
-        info_size = value
+        if len(value) == 3:
-        if info_size not in self.info["sizes"] and len(info_size) == 2:
+            deprecate("Setting size to (width, height, scale)", 12, "load(scale)")
-            info_size = (info_size[0], info_size[1], 1)
+            if value in self.info["sizes"]:
-        if (
+                self._size = value  # type: ignore[assignment]
-            info_size not in self.info["sizes"]
+                return
-            and len(info_size) == 3
+        else:
-            and info_size[2] == 1
+            # Check that a matching size exists,
-        ):
+            # or that there is a scale that would create a size that matches
-            simple_sizes = [
+            for size in self.info["sizes"]:
-                (size[0] * size[2], size[1] * size[2]) for size in self.info["sizes"]
+                simple_size = size[0] * size[2], size[1] * size[2]
-            ]
+                scale = simple_size[0] // value[0]
-            if value in simple_sizes:
+                if simple_size[1] / value[1] == scale:
-                info_size = self.info["sizes"][simple_sizes.index(value)]
+                    self._size = value
-        if info_size not in self.info["sizes"]:
+                    return
         msg = "This is not one of the allowed sizes of this image"
         raise ValueError(msg)
-        self._size = value
 
-    def load(self) -> Image.core.PixelAccess | None:
+    def load(self, scale: int | None = None) -> Image.core.PixelAccess | None:
-        if len(self.size) == 3:
+        if scale is not None or len(self.size) == 3:
-            self.best_size = self.size
+            if scale is None and len(self.size) == 3:
-            self.size = (
+                scale = self.size[2]
-                self.best_size[0] * self.best_size[2],
+            assert scale is not None
-                self.best_size[1] * self.best_size[2],
+            width, height = self.size[:2]
-            )
+            self.size = width * scale, height * scale
+            self.best_size = width, height, scale
 
         px = Image.Image.load(self)
-        if self.im is not None and self.im.size == self.size:
+        if self._im is not None and self.im.size == self.size:
             # Already loaded
             return px
         self.load_prepare()

src/PIL/IcoImagePlugin.py

@@ -228,7 +228,7 @@ class IcoFile:
             # change tile dimension to only encompass XOR image
             im._size = (im.size[0], int(im.size[1] / 2))
             d, e, o, a = im.tile[0]
-            im.tile[0] = d, (0, 0) + im.size, o, a
+            im.tile[0] = ImageFile._Tile(d, (0, 0) + im.size, o, a)
 
             # figure out where AND mask image starts
             if header.bpp == 32:
@@ -243,6 +243,7 @@ class IcoFile:
                 alpha_bytes = self.buf.read(im.size[0] * im.size[1] * 4)[3::4]
 
                 # convert to an 8bpp grayscale image
+                try:
                     mask = Image.frombuffer(
                         "L",  # 8bpp
                         im.size,  # (w, h)
@@ -250,6 +251,11 @@ class IcoFile:
                         "raw",  # raw decoder
                         ("L", 0, -1),  # 8bpp inverted, unpadded, reversed
                     )
+                except ValueError:
+                    if ImageFile.LOAD_TRUNCATED_IMAGES:
+                        mask = None
+                    else:
+                        raise
             else:
                 # get AND image from end of bitmap
                 w = im.size[0]
@@ -267,6 +273,7 @@ class IcoFile:
                 mask_data = self.buf.read(total_bytes)
 
                 # convert raw data to image
+                try:
                     mask = Image.frombuffer(
                         "1",  # 1 bpp
                         im.size,  # (w, h)
@@ -274,10 +281,16 @@ class IcoFile:
                         "raw",  # raw decoder
                         ("1;I", int(w / 8), -1),  # 1bpp inverted, padded, reversed
                     )
+                except ValueError:
+                    if ImageFile.LOAD_TRUNCATED_IMAGES:
+                        mask = None
+                    else:
+                        raise
 
                 # now we have two images, im is XOR image and mask is AND image
 
             # apply mask image as alpha channel
+            if mask:
                 im = im.convert("RGBA")
                 im.putalpha(mask)
 
@@ -319,18 +332,18 @@ class IcoImageFile(ImageFile.ImageFile):
         self.load()
 
     @property
-    def size(self):
+    def size(self) -> tuple[int, int]:
         return self._size
 
     @size.setter
-    def size(self, value):
+    def size(self, value: tuple[int, int]) -> None:
         if value not in self.info["sizes"]:
             msg = "This is not one of the allowed sizes of this image"
             raise ValueError(msg)
         self._size = value
 
     def load(self) -> Image.core.PixelAccess | None:
-        if self.im is not None and self.im.size == self.size:
+        if self._im is not None and self.im.size == self.size:
             # Already loaded
             return Image.Image.load(self)
         im = self.ico.getimage(self.size)

src/PIL/ImImagePlugin.py

@@ -253,7 +253,11 @@ class ImImageFile(ImageFile.ImageFile):
                 # use bit decoder (if necessary)
                 bits = int(self.rawmode[2:])
                 if bits not in [8, 16, 32]:
-                    self.tile = [("bit", (0, 0) + self.size, offs, (bits, 8, 3, 0, -1))]
+                    self.tile = [
+                        ImageFile._Tile(
+                            "bit", (0, 0) + self.size, offs, (bits, 8, 3, 0, -1)
+                        )
+                    ]
                     return
             except ValueError:
                 pass
@@ -263,13 +267,17 @@ class ImImageFile(ImageFile.ImageFile):
             # ever stumbled upon such a file ;-)
             size = self.size[0] * self.size[1]
             self.tile = [
-                ("raw", (0, 0) + self.size, offs, ("G", 0, -1)),
+                ImageFile._Tile("raw", (0, 0) + self.size, offs, ("G", 0, -1)),
-                ("raw", (0, 0) + self.size, offs + size, ("R", 0, -1)),
+                ImageFile._Tile("raw", (0, 0) + self.size, offs + size, ("R", 0, -1)),
-                ("raw", (0, 0) + self.size, offs + 2 * size, ("B", 0, -1)),
+                ImageFile._Tile(
+                    "raw", (0, 0) + self.size, offs + 2 * size, ("B", 0, -1)
+                ),
             ]
         else:
             # LabEye/IFUNC files
-            self.tile = [("raw", (0, 0) + self.size, offs, (self.rawmode, 0, -1))]
+            self.tile = [
+                ImageFile._Tile("raw", (0, 0) + self.size, offs, (self.rawmode, 0, -1))
+            ]
 
     @property
     def n_frames(self) -> int:
@@ -295,7 +303,9 @@ class ImImageFile(ImageFile.ImageFile):
 
         self.fp = self._fp
 
-        self.tile = [("raw", (0, 0) + self.size, offs, (self.rawmode, 0, -1))]
+        self.tile = [
+            ImageFile._Tile("raw", (0, 0) + self.size, offs, (self.rawmode, 0, -1))
+        ]
 
     def tell(self) -> int:
         return self.frame

src/PIL/Image.py

@@ -133,6 +133,7 @@ def isImageType(t: Any) -> TypeGuard[Image]:
     :param t: object to check if it's an image
     :returns: True if the object is an image
     """
+    deprecate("Image.isImageType(im)", 12, "isinstance(im, Image.Image)")
     return hasattr(t, "im")
 
 
@@ -221,8 +222,15 @@ if TYPE_CHECKING:
     import mmap
     from xml.etree.ElementTree import Element
 
-    from . import ImageFile, ImageFilter, ImagePalette, TiffImagePlugin
+    from IPython.lib.pretty import PrettyPrinter
+
+    from . import ImageFile, ImageFilter, ImagePalette, ImageQt, TiffImagePlugin
     from ._typing import NumpyArray, StrOrBytesPath, TypeGuard
+
+    if sys.version_info >= (3, 13):
+        from types import CapsuleType
+    else:
+        CapsuleType = object
 ID: list[str] = []
 OPEN: dict[
     str,
@@ -468,43 +476,53 @@ def _getencoder(
 # Simple expression analyzer
 
 
-class _E:
+class ImagePointTransform:
+    """
+    Used with :py:meth:`~PIL.Image.Image.point` for single band images with more than
+    8 bits, this represents an affine transformation, where the value is multiplied by
+    ``scale`` and ``offset`` is added.
+    """
+
     def __init__(self, scale: float, offset: float) -> None:
         self.scale = scale
         self.offset = offset
 
-    def __neg__(self) -> _E:
+    def __neg__(self) -> ImagePointTransform:
-        return _E(-self.scale, -self.offset)
+        return ImagePointTransform(-self.scale, -self.offset)
 
-    def __add__(self, other: _E | float) -> _E:
+    def __add__(self, other: ImagePointTransform | float) -> ImagePointTransform:
-        if isinstance(other, _E):
+        if isinstance(other, ImagePointTransform):
-            return _E(self.scale + other.scale, self.offset + other.offset)
+            return ImagePointTransform(
-        return _E(self.scale, self.offset + other)
+                self.scale + other.scale, self.offset + other.offset
+            )
+        return ImagePointTransform(self.scale, self.offset + other)
 
     __radd__ = __add__
 
-    def __sub__(self, other: _E | float) -> _E:
+    def __sub__(self, other: ImagePointTransform | float) -> ImagePointTransform:
         return self + -other
 
-    def __rsub__(self, other: _E | float) -> _E:
+    def __rsub__(self, other: ImagePointTransform | float) -> ImagePointTransform:
         return other + -self
 
-    def __mul__(self, other: _E | float) -> _E:
+    def __mul__(self, other: ImagePointTransform | float) -> ImagePointTransform:
-        if isinstance(other, _E):
+        if isinstance(other, ImagePointTransform):
             return NotImplemented
-        return _E(self.scale * other, self.offset * other)
+        return ImagePointTransform(self.scale * other, self.offset * other)
 
     __rmul__ = __mul__
 
-    def __truediv__(self, other: _E | float) -> _E:
+    def __truediv__(self, other: ImagePointTransform | float) -> ImagePointTransform:
-        if isinstance(other, _E):
+        if isinstance(other, ImagePointTransform):
             return NotImplemented
-        return _E(self.scale / other, self.offset / other)
+        return ImagePointTransform(self.scale / other, self.offset / other)
 
 
-def _getscaleoffset(expr) -> tuple[float, float]:
+def _getscaleoffset(
-    a = expr(_E(1, 0))
+    expr: Callable[[ImagePointTransform], ImagePointTransform | float]
-    return (a.scale, a.offset) if isinstance(a, _E) else (0, a)
+) -> tuple[float, float]:
+    a = expr(ImagePointTransform(1, 0))
+    return (a.scale, a.offset) if isinstance(a, ImagePointTransform) else (0, a)
 
 
 # --------------------------------------------------------------------
@@ -533,16 +551,27 @@ class Image:
     format_description: str | None = None
     _close_exclusive_fp_after_loading = True
 
-    def __init__(self):
+    def __init__(self) -> None:
         # FIXME: take "new" parameters / other image?
         # FIXME: turn mode and size into delegating properties?
-        self.im = None
+        self._im: core.ImagingCore | DeferredError | None = None
         self._mode = ""
         self._size = (0, 0)
-        self.palette = None
+        self.palette: ImagePalette.ImagePalette | None = None
-        self.info = {}
+        self.info: dict[str | tuple[int, int], Any] = {}
         self.readonly = 0
-        self._exif = None
+        self._exif: Exif | None = None
+
+    @property
+    def im(self) -> core.ImagingCore:
+        if isinstance(self._im, DeferredError):
+            raise self._im.ex
+        assert self._im is not None
+        return self._im
+
+    @im.setter
+    def im(self, im: core.ImagingCore) -> None:
+        self._im = im
 
     @property
     def width(self) -> int:
@@ -618,7 +647,7 @@ class Image:
         # Instead of simply setting to None, we're setting up a
         # deferred error that will better explain that the core image
         # object is gone.
-        self.im = DeferredError(ValueError("Operation on closed image"))
+        self._im = DeferredError(ValueError("Operation on closed image"))
 
     def _copy(self) -> None:
         self.load()
@@ -677,7 +706,7 @@ class Image:
             id(self),
         )
 
-    def _repr_pretty_(self, p, cycle: bool) -> None:
+    def _repr_pretty_(self, p: PrettyPrinter, cycle: bool) -> None:
         """IPython plain text display support"""
 
         # Same as __repr__ but without unpredictable id(self),
@@ -724,24 +753,12 @@ class Image:
     def __array_interface__(self) -> dict[str, str | bytes | int | tuple[int, ...]]:
         # numpy array interface support
         new: dict[str, str | bytes | int | tuple[int, ...]] = {"version": 3}
-        try:
         if self.mode == "1":
             # Binary images need to be extended from bits to bytes
             # See: https://github.com/python-pillow/Pillow/issues/350
             new["data"] = self.tobytes("raw", "L")
         else:
             new["data"] = self.tobytes()
-        except Exception as e:
-            if not isinstance(e, (MemoryError, RecursionError)):
-                try:
-                    import numpy
-                    from packaging.version import parse as parse_version
-                except ImportError:
-                    pass
-                else:
-                    if parse_version(numpy.__version__) < parse_version("1.23"):
-                        warnings.warn(str(e))
-            raise
         new["shape"], new["typestr"] = _conv_type_shape(self)
         return new
 
@@ -840,7 +857,10 @@ class Image:
         )
 
     def frombytes(
-        self, data: bytes | bytearray, decoder_name: str = "raw", *args: Any
+        self,
+        data: bytes | bytearray | SupportsArrayInterface,
+        decoder_name: str = "raw",
+        *args: Any,
     ) -> None:
         """
         Loads this image with pixel data from a bytes object.
@@ -888,7 +908,7 @@ class Image:
         :returns: An image access object.
         :rtype: :py:class:`.PixelAccess`
         """
-        if self.im is not None and self.palette and self.palette.dirty:
+        if self._im is not None and self.palette and self.palette.dirty:
             # realize palette
             mode, arr = self.palette.getdata()
             self.im.putpalette(self.palette.mode, mode, arr)
@@ -905,7 +925,7 @@ class Image:
                     self.palette.mode, self.palette.mode
                 )
 
-        if self.im is not None:
+        if self._im is not None:
             return self.im.pixel_access(self.readonly)
         return None
 
@@ -1046,9 +1066,11 @@ class Image:
                     # use existing conversions
                     trns_im = new(self.mode, (1, 1))
                     if self.mode == "P":
-                        trns_im.putpalette(self.palette)
+                        assert self.palette is not None
+                        trns_im.putpalette(self.palette, self.palette.mode)
                         if isinstance(t, tuple):
                             err = "Couldn't allocate a palette color for transparency"
+                            assert trns_im.palette is not None
                             try:
                                 t = trns_im.palette.getcolor(t, self)
                             except ValueError as e:
@@ -1109,17 +1131,23 @@ class Image:
             return new_im
 
         if "LAB" in (self.mode, mode):
-            other_mode = mode if self.mode == "LAB" else self.mode
+            im = self
+            if mode == "LAB":
+                if im.mode not in ("RGB", "RGBA", "RGBX"):
+                    im = im.convert("RGBA")
+                other_mode = im.mode
+            else:
+                other_mode = mode
             if other_mode in ("RGB", "RGBA", "RGBX"):
                 from . import ImageCms
 
                 srgb = ImageCms.createProfile("sRGB")
                 lab = ImageCms.createProfile("LAB")
-                profiles = [lab, srgb] if self.mode == "LAB" else [srgb, lab]
+                profiles = [lab, srgb] if im.mode == "LAB" else [srgb, lab]
                 transform = ImageCms.buildTransform(
-                    profiles[0], profiles[1], self.mode, mode
+                    profiles[0], profiles[1], im.mode, mode
                 )
-                return transform.apply(self)
+                return transform.apply(im)
 
         # colorspace conversion
         if dither is None:
@@ -1150,7 +1178,9 @@ class Image:
         if trns is not None:
             if new_im.mode == "P" and new_im.palette:
                 try:
-                    new_im.info["transparency"] = new_im.palette.getcolor(trns, new_im)
+                    new_im.info["transparency"] = new_im.palette.getcolor(
+                        cast(tuple[int, ...], trns), new_im  # trns was converted to RGB
+                    )
                 except ValueError as e:
                     del new_im.info["transparency"]
                     if str(e) != "cannot allocate more than 256 colors":
@@ -1228,6 +1258,7 @@ class Image:
                 raise ValueError(msg)
             im = self.im.convert("P", dither, palette.im)
             new_im = self._new(im)
+            assert palette.palette is not None
             new_im.palette = palette.palette.copy()
             return new_im
 
@@ -1582,7 +1613,7 @@ class Image:
             self.fp.seek(offset)
         return child_images
 
-    def getim(self):
+    def getim(self) -> CapsuleType:
         """
         Returns a capsule that points to the internal image memory.
 
@@ -1626,11 +1657,15 @@ class Image:
 
         :returns: A boolean.
         """
-        return (
+        if (
             self.mode in ("LA", "La", "PA", "RGBA", "RGBa")
-            or (self.mode == "P" and self.palette.mode.endswith("A"))
             or "transparency" in self.info
-        )
+        ):
+            return True
+        if self.mode == "P":
+            assert self.palette is not None
+            return self.palette.mode.endswith("A")
+        return False
 
     def apply_transparency(self) -> None:
         """
@@ -1789,23 +1824,22 @@ class Image:
         :param mask: An optional mask image.
         """
 
-        if isImageType(box):
+        if isinstance(box, Image):
             if mask is not None:
                 msg = "If using second argument as mask, third argument must be None"
                 raise ValueError(msg)
             # abbreviated paste(im, mask) syntax
             mask = box
             box = None
-        assert not isinstance(box, Image)
 
         if box is None:
             box = (0, 0)
 
         if len(box) == 2:
             # upper left corner given; get size from image or mask
-            if isImageType(im):
+            if isinstance(im, Image):
                 size = im.size
-            elif isImageType(mask):
+            elif isinstance(mask, Image):
                 size = mask.size
             else:
                 # FIXME: use self.size here?
@@ -1813,26 +1847,28 @@ class Image:
                 raise ValueError(msg)
             box += (box[0] + size[0], box[1] + size[1])
 
+        source: core.ImagingCore | str | float | tuple[float, ...]
         if isinstance(im, str):
             from . import ImageColor
 
-            im = ImageColor.getcolor(im, self.mode)
+            source = ImageColor.getcolor(im, self.mode)
-
+        elif isinstance(im, Image):
-        elif isImageType(im):
             im.load()
             if self.mode != im.mode:
                 if self.mode != "RGB" or im.mode not in ("LA", "RGBA", "RGBa"):
                     # should use an adapter for this!
                     im = im.convert(self.mode)
-            im = im.im
+            source = im.im
+        else:
+            source = im
 
         self._ensure_mutable()
 
         if mask:
             mask.load()
-            self.im.paste(im, box, mask.im)
+            self.im.paste(source, box, mask.im)
         else:
-            self.im.paste(im, box)
+            self.im.paste(source, box)
 
     def alpha_composite(
         self, im: Image, dest: Sequence[int] = (0, 0), source: Sequence[int] = (0, 0)
@@ -1892,7 +1928,13 @@ class Image:
 
     def point(
         self,
-        lut: Sequence[float] | NumpyArray | Callable[[int], float] | ImagePointHandler,
+        lut: (
+            Sequence[float]
+            | NumpyArray
+            | Callable[[int], float]
+            | Callable[[ImagePointTransform], ImagePointTransform | float]
+            | ImagePointHandler
+        ),
         mode: str | None = None,
     ) -> Image:
         """
@@ -1909,7 +1951,7 @@ class Image:
            object::
 
                class Example(Image.ImagePointHandler):
-                 def point(self, data):
+                 def point(self, im: Image) -> Image:
                    # Return result
         :param mode: Output mode (default is same as input). This can only be used if
            the source image has mode "L" or "P", and the output has mode "1" or the
@@ -1928,10 +1970,10 @@ class Image:
                 # check if the function can be used with point_transform
                 # UNDONE wiredfool -- I think this prevents us from ever doing
                 # a gamma function point transform on > 8bit images.
-                scale, offset = _getscaleoffset(lut)
+                scale, offset = _getscaleoffset(lut)  # type: ignore[arg-type]
                 return self._new(self.im.point_transform(scale, offset))
             # for other modes, convert the function to a table
-            flatLut = [lut(i) for i in range(256)] * self.im.bands
+            flatLut = [lut(i) for i in range(256)] * self.im.bands  # type: ignore[arg-type]
         else:
             flatLut = lut
 
@@ -1979,7 +2021,7 @@ class Image:
         else:
             band = 3
 
-        if isImageType(alpha):
+        if isinstance(alpha, Image):
             # alpha layer
             if alpha.mode not in ("1", "L"):
                 msg = "illegal image mode"
@@ -1989,7 +2031,6 @@ class Image:
                 alpha = alpha.convert("L")
         else:
             # constant alpha
-            alpha = cast(int, alpha)  # see python/typing#1013
             try:
                 self.im.fillband(band, alpha)
             except (AttributeError, ValueError):
@@ -2103,7 +2144,8 @@ class Image:
             if self.mode == "PA":
                 alpha = value[3] if len(value) == 4 else 255
                 value = value[:3]
-            palette_index = self.palette.getcolor(value, self)
+            assert self.palette is not None
+            palette_index = self.palette.getcolor(tuple(value), self)
             value = (palette_index, alpha) if self.mode == "PA" else palette_index
         return self.im.putpixel(xy, value)
 
@@ -2137,6 +2179,9 @@ class Image:
                 source_palette = self.im.getpalette(palette_mode, palette_mode)
             else:  # L-mode
                 source_palette = bytearray(i // 3 for i in range(768))
+        elif len(source_palette) > 768:
+            bands = 4
+            palette_mode = "RGBA"
 
         palette_bytes = b""
         new_positions = [0] * 256
@@ -2287,7 +2332,6 @@ class Image:
             msg = "reducing_gap must be 1.0 or greater"
             raise ValueError(msg)
 
-        self.load()
         if box is None:
             box = (0, 0) + self.size
 
@@ -2736,27 +2780,18 @@ class Image:
                 )
             return x, y
 
-        box = None
-        final_size: tuple[int, int]
-        if reducing_gap is not None:
         preserved_size = preserve_aspect_ratio()
         if preserved_size is None:
             return
         final_size = preserved_size
 
+        box = None
+        if reducing_gap is not None:
             res = self.draft(
                 None, (int(size[0] * reducing_gap), int(size[1] * reducing_gap))
             )
             if res is not None:
                 box = res[1]
-        if box is None:
-            self.load()
-
-            # load() may have changed the size of the image
-            preserved_size = preserve_aspect_ratio()
-            if preserved_size is None:
-                return
-            final_size = preserved_size
 
         if self.size != final_size:
             im = self.resize(final_size, resample, box=box, reducing_gap=reducing_gap)
@@ -2867,11 +2902,11 @@ class Image:
         self,
         box: tuple[int, int, int, int],
         image: Image,
-        method,
+        method: Transform,
-        data,
+        data: Sequence[float],
         resample: int = Resampling.NEAREST,
         fill: bool = True,
-    ):
+    ) -> None:
         w = box[2] - box[0]
         h = box[3] - box[1]
 
@@ -2972,7 +3007,7 @@ class Image:
         self.load()
         return self._new(self.im.effect_spread(distance))
 
-    def toqimage(self):
+    def toqimage(self) -> ImageQt.ImageQt:
         """Returns a QImage copy of this image"""
         from . import ImageQt
 
@@ -2981,7 +3016,7 @@ class Image:
             raise ImportError(msg)
         return ImageQt.toqimage(self)
 
-    def toqpixmap(self):
+    def toqpixmap(self) -> ImageQt.QPixmap:
         """Returns a QPixmap copy of this image"""
         from . import ImageQt
 
@@ -3109,7 +3144,7 @@ def new(
 def frombytes(
     mode: str,
     size: tuple[int, int],
-    data: bytes | bytearray,
+    data: bytes | bytearray | SupportsArrayInterface,
     decoder_name: str = "raw",
     *args: Any,
 ) -> Image:
@@ -3153,7 +3188,11 @@ def frombytes(
 
 
 def frombuffer(
-    mode: str, size: tuple[int, int], data, decoder_name: str = "raw", *args: Any
+    mode: str,
+    size: tuple[int, int],
+    data: bytes | SupportsArrayInterface,
+    decoder_name: str = "raw",
+    *args: Any,
 ) -> Image:
     """
     Creates an image memory referencing pixel data in a byte buffer.
@@ -3308,7 +3347,7 @@ def fromarray(obj: SupportsArrayInterface, mode: str | None = None) -> Image:
     return frombuffer(mode, size, obj, "raw", rawmode, 0, 1)
 
 
-def fromqimage(im) -> ImageFile.ImageFile:
+def fromqimage(im: ImageQt.QImage) -> ImageFile.ImageFile:
     """Creates an image instance from a QImage image"""
     from . import ImageQt
 
@@ -3318,7 +3357,7 @@ def fromqimage(im) -> ImageFile.ImageFile:
     return ImageQt.fromqimage(im)
 
 
-def fromqpixmap(im) -> ImageFile.ImageFile:
+def fromqpixmap(im: ImageQt.QPixmap) -> ImageFile.ImageFile:
     """Creates an image instance from a QPixmap image"""
     from . import ImageQt
 
@@ -3610,7 +3649,10 @@ def merge(mode: str, bands: Sequence[Image]) -> Image:
 
 def register_open(
     id: str,
-    factory: Callable[[IO[bytes], str | bytes], ImageFile.ImageFile],
+    factory: (
+        Callable[[IO[bytes], str | bytes], ImageFile.ImageFile]
+        | type[ImageFile.ImageFile]
+    ),
     accept: Callable[[bytes], bool | str] | None = None,
 ) -> None:
     """
@@ -3929,7 +3971,7 @@ class Exif(_ExifBase):
         self._data.clear()
         self._hidden_data.clear()
         self._ifds.clear()
-        if data and data.startswith(b"Exif\x00\x00"):
+        while data and data.startswith(b"Exif\x00\x00"):
             data = data[6:]
         if not data:
             self._info = None
@@ -4006,15 +4048,19 @@ class Exif(_ExifBase):
             ifd[tag] = value
         return b"Exif\x00\x00" + head + ifd.tobytes(offset)
 
-    def get_ifd(self, tag):
+    def get_ifd(self, tag: int) -> dict[int, Any]:
         if tag not in self._ifds:
             if tag == ExifTags.IFD.IFD1:
                 if self._info is not None and self._info.next != 0:
-                    self._ifds[tag] = self._get_ifd_dict(self._info.next)
+                    ifd = self._get_ifd_dict(self._info.next)
+                    if ifd is not None:
+                        self._ifds[tag] = ifd
             elif tag in [ExifTags.IFD.Exif, ExifTags.IFD.GPSInfo]:
                 offset = self._hidden_data.get(tag, self.get(tag))
                 if offset is not None:
-                    self._ifds[tag] = self._get_ifd_dict(offset, tag)
+                    ifd = self._get_ifd_dict(offset, tag)
+                    if ifd is not None:
+                        self._ifds[tag] = ifd
             elif tag in [ExifTags.IFD.Interop, ExifTags.IFD.Makernote]:
                 if ExifTags.IFD.Exif not in self._ifds:
                     self.get_ifd(ExifTags.IFD.Exif)
@@ -4071,7 +4117,9 @@ class Exif(_ExifBase):
                                 (offset,) = struct.unpack(">L", data)
                                 self.fp.seek(offset)
 
-                                camerainfo = {"ModelID": self.fp.read(4)}
+                                camerainfo: dict[str, int | bytes] = {
+                                    "ModelID": self.fp.read(4)
+                                }
 
                                 self.fp.read(4)
                                 # Seconds since 2000
@@ -4087,17 +4135,19 @@ class Exif(_ExifBase):
                                 ][1]
                                 camerainfo["Parallax"] = handler(
                                     ImageFileDirectory_v2(), parallax, False
-                                )
+                                )[0]
 
                                 self.fp.read(4)
                                 camerainfo["Category"] = self.fp.read(2)
 
-                                makernote = {0x1101: dict(self._fixup_dict(camerainfo))}
+                                makernote = {0x1101: camerainfo}
                         self._ifds[tag] = makernote
                 else:
                     # Interop
-                    self._ifds[tag] = self._get_ifd_dict(tag_data, tag)
+                    ifd = self._get_ifd_dict(tag_data, tag)
-        ifd = self._ifds.get(tag, {})
+                    if ifd is not None:
+                        self._ifds[tag] = ifd
+        ifd = self._ifds.setdefault(tag, {})
         if tag == ExifTags.IFD.Exif and self._hidden_data:
             ifd = {
                 k: v

src/PIL/ImageDraw.py

@@ -32,7 +32,6 @@
 from __future__ import annotations
 
 import math
-import numbers
 import struct
 from collections.abc import Sequence
 from types import ModuleType
@@ -160,13 +159,13 @@ class ImageDraw:
             if ink is not None:
                 if isinstance(ink, str):
                     ink = ImageColor.getcolor(ink, self.mode)
-                if self.palette and not isinstance(ink, numbers.Number):
+                if self.palette and isinstance(ink, tuple):
                     ink = self.palette.getcolor(ink, self._image)
                 result_ink = self.draw.draw_ink(ink)
             if fill is not None:
                 if isinstance(fill, str):
                     fill = ImageColor.getcolor(fill, self.mode)
-                if self.palette and not isinstance(fill, numbers.Number):
+                if self.palette and isinstance(fill, tuple):
                     fill = self.palette.getcolor(fill, self._image)
                 result_fill = self.draw.draw_ink(fill)
         return result_ink, result_fill

src/PIL/ImageFile.py

@@ -31,14 +31,18 @@ from __future__ import annotations
 import abc
 import io
 import itertools
+import os
 import struct
 import sys
-from typing import IO, Any, NamedTuple
+from typing import IO, TYPE_CHECKING, Any, NamedTuple, cast
 
 from . import Image
 from ._deprecate import deprecate
 from ._util import is_path
 
+if TYPE_CHECKING:
+    from ._typing import StrOrBytesPath
+
 MAXBLOCK = 65536
 
 SAFEBLOCK = 1024 * 1024
@@ -106,32 +110,34 @@ class _Tile(NamedTuple):
 class ImageFile(Image.Image):
     """Base class for image file format handlers."""
 
-    def __init__(self, fp=None, filename=None):
+    def __init__(
+        self, fp: StrOrBytesPath | IO[bytes], filename: str | bytes | None = None
+    ) -> None:
         super().__init__()
 
         self._min_frame = 0
 
-        self.custom_mimetype = None
+        self.custom_mimetype: str | None = None
 
-        self.tile = None
+        self.tile: list[_Tile] = []
         """ A list of tile descriptors, or ``None`` """
 
         self.readonly = 1  # until we know better
 
-        self.decoderconfig = ()
+        self.decoderconfig: tuple[Any, ...] = ()
         self.decodermaxblock = MAXBLOCK
 
         if is_path(fp):
             # filename
             self.fp = open(fp, "rb")
-            self.filename = fp
+            self.filename = os.path.realpath(os.fspath(fp))
             self._exclusive_fp = True
         else:
             # stream
-            self.fp = fp
+            self.fp = cast(IO[bytes], fp)
-            self.filename = filename
+            self.filename = filename if filename is not None else ""
             # can be overridden
-            self._exclusive_fp = None
+            self._exclusive_fp = False
 
         try:
             try:
@@ -154,6 +160,9 @@ class ImageFile(Image.Image):
                 self.fp.close()
             raise
 
+    def _open(self) -> None:
+        pass
+
     def get_format_mimetype(self) -> str | None:
         if self.custom_mimetype:
             return self.custom_mimetype
@@ -177,7 +186,7 @@ class ImageFile(Image.Image):
     def load(self) -> Image.core.PixelAccess | None:
         """Load image data based on tile list"""
 
-        if self.tile is None:
+        if not self.tile and self._im is None:
             msg = "cannot load this image"
             raise OSError(msg)
 
@@ -213,6 +222,7 @@ class ImageFile(Image.Image):
                 args = (args, 0, 1)
             if (
                 decoder_name == "raw"
+                and isinstance(args, tuple)
                 and len(args) >= 3
                 and args[0] == self.mode
                 and args[0] in Image._MAPMODES
@@ -312,7 +322,7 @@ class ImageFile(Image.Image):
 
     def load_prepare(self) -> None:
         # create image memory if necessary
-        if not self.im or self.im.mode != self.mode or self.im.size != self.size:
+        if self._im is None:
             self.im = Image.core.new(self.mode, self.size)
         # create palette (optional)
         if self.mode == "P":
@@ -555,7 +565,7 @@ def _encode_tile(
     fp: IO[bytes],
     tile: list[_Tile],
     bufsize: int,
-    fh,
+    fh: int | None,
     exc: BaseException | None = None,
 ) -> None:
     for encoder_name, extents, offset, args in tile:
@@ -577,6 +587,7 @@ def _encode_tile(
                             break
                 else:
                     # slight speedup: compress to real file object
+                    assert fh is not None
                     errcode = encoder.encode_to_file(fh, bufsize)
             if errcode < 0:
                 raise _get_oserror(errcode, encoder=True) from exc
@@ -722,7 +733,7 @@ class PyDecoder(PyCodec):
     def pulls_fd(self) -> bool:
         return self._pulls_fd
 
-    def decode(self, buffer: bytes) -> tuple[int, int]:
+    def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
         """
         Override to perform the decoding process.
 
@@ -734,19 +745,22 @@ class PyDecoder(PyCodec):
         msg = "unavailable in base decoder"
         raise NotImplementedError(msg)
 
-    def set_as_raw(self, data: bytes, rawmode=None) -> None:
+    def set_as_raw(
+        self, data: bytes, rawmode: str | None = None, extra: tuple[Any, ...] = ()
+    ) -> None:
         """
         Convenience method to set the internal image from a stream of raw data
 
         :param data: Bytes to be set
         :param rawmode: The rawmode to be used for the decoder.
             If not specified, it will default to the mode of the image
+        :param extra: Extra arguments for the decoder.
         :returns: None
         """
 
         if not rawmode:
             rawmode = self.mode
-        d = Image._getdecoder(self.mode, "raw", rawmode)
+        d = Image._getdecoder(self.mode, "raw", rawmode, extra)
         assert self.im is not None
         d.setimage(self.im, self.state.extents())
         s = d.decode(data)
@@ -801,7 +815,7 @@ class PyEncoder(PyCodec):
             self.fd.write(data)
         return bytes_consumed, errcode
 
-    def encode_to_file(self, fh: IO[bytes], bufsize: int) -> int:
+    def encode_to_file(self, fh: int, bufsize: int) -> int:
         """
         :param fh: File handle.
         :param bufsize: Buffer size.
@@ -814,5 +828,5 @@ class PyEncoder(PyCodec):
         while errcode == 0:
             status, errcode, buf = self.encode(bufsize)
             if status > 0:
-                fh.write(buf[status:])
+                os.write(fh, buf[status:])
         return errcode

src/PIL/ImageFont.py

@@ -34,9 +34,9 @@ import warnings
 from enum import IntEnum
 from io import BytesIO
 from types import ModuleType
-from typing import IO, TYPE_CHECKING, Any, BinaryIO, TypedDict
+from typing import IO, TYPE_CHECKING, Any, BinaryIO, TypedDict, cast
 
-from . import Image
+from . import Image, features
 from ._typing import StrOrBytesPath
 from ._util import DeferredError, is_path
 
@@ -98,11 +98,13 @@ class ImageFont:
     def _load_pilfont(self, filename: str) -> None:
         with open(filename, "rb") as fp:
             image: ImageFile.ImageFile | None = None
+            root = os.path.splitext(filename)[0]
+
             for ext in (".png", ".gif", ".pbm"):
                 if image:
                     image.close()
                 try:
-                    fullname = os.path.splitext(filename)[0] + ext
+                    fullname = root + ext
                     image = Image.open(fullname)
                 except Exception:
                     pass
@@ -112,7 +114,8 @@ class ImageFont:
             else:
                 if image:
                     image.close()
-                msg = "cannot find glyph data file"
+
+                msg = f"cannot find glyph data file {root}.{{gif|pbm|png}}"
                 raise OSError(msg)
 
             self.file = fullname
@@ -212,7 +215,7 @@ class FreeTypeFont:
 
     def __init__(
         self,
-        font: StrOrBytesPath | BinaryIO | None = None,
+        font: StrOrBytesPath | BinaryIO,
         size: float = 10,
         index: int = 0,
         encoding: str = "",
@@ -224,7 +227,7 @@ class FreeTypeFont:
             raise core.ex
 
         if size <= 0:
-            msg = "font size must be greater than 0"
+            msg = f"font size must be greater than 0, not {size}"
             raise ValueError(msg)
 
         self.path = font
@@ -232,6 +235,21 @@ class FreeTypeFont:
         self.index = index
         self.encoding = encoding
 
+        try:
+            from packaging.version import parse as parse_version
+        except ImportError:
+            pass
+        else:
+            if freetype_version := features.version_module("freetype2"):
+                if parse_version(freetype_version) < parse_version("2.9.1"):
+                    warnings.warn(
+                        "Support for FreeType 2.9.0 is deprecated and will be removed "
+                        "in Pillow 12 (2025-10-15). Please upgrade to FreeType 2.9.1 "
+                        "or newer, preferably FreeType 2.10.4 which fixes "
+                        "CVE-2020-15999.",
+                        DeprecationWarning,
+                    )
+
         if layout_engine not in (Layout.BASIC, Layout.RAQM):
             layout_engine = Layout.BASIC
             if core.HAVE_RAQM:
@@ -245,7 +263,7 @@ class FreeTypeFont:
 
         self.layout_engine = layout_engine
 
-        def load_from_bytes(f) -> None:
+        def load_from_bytes(f: IO[bytes]) -> None:
             self.font_bytes = f.read()
             self.font = core.getfont(
                 "", size, index, encoding, self.font_bytes, layout_engine
@@ -267,7 +285,7 @@ class FreeTypeFont:
                 font, size, index, encoding, layout_engine=layout_engine
             )
         else:
-            load_from_bytes(font)
+            load_from_bytes(cast(IO[bytes], font))
 
     def __getstate__(self) -> list[Any]:
         return [self.path, self.size, self.index, self.encoding, self.layout_engine]
@@ -769,7 +787,8 @@ class TransposedFont:
 def load(filename: str) -> ImageFont:
     """
     Load a font file. This function loads a font object from the given
-    bitmap font file, and returns the corresponding font object.
+    bitmap font file, and returns the corresponding font object. For loading TrueType
+    or OpenType fonts instead, see :py:func:`~PIL.ImageFont.truetype`.
 
     :param filename: Name of font file.
     :return: A font object.
@@ -781,7 +800,7 @@ def load(filename: str) -> ImageFont:
 
 
 def truetype(
-    font: StrOrBytesPath | BinaryIO | None = None,
+    font: StrOrBytesPath | BinaryIO,
     size: float = 10,
     index: int = 0,
     encoding: str = "",
@@ -789,9 +808,10 @@ def truetype(
 ) -> FreeTypeFont:
     """
     Load a TrueType or OpenType font from a file or file-like object,
-    and create a font object.
+    and create a font object. This function loads a font object from the given
-    This function loads a font object from the given file or file-like
+    file or file-like object, and creates a font object for a font of the given
-    object, and creates a font object for a font of the given size.
+    size. For loading bitmap fonts instead, see :py:func:`~PIL.ImageFont.load`
+    and :py:func:`~PIL.ImageFont.load_path`.
 
     Pillow uses FreeType to open font files. On Windows, be aware that FreeType
     will keep the file open as long as the FreeTypeFont object exists. Windows
@@ -852,7 +872,7 @@ def truetype(
     :exception ValueError: If the font size is not greater than zero.
     """
 
-    def freetype(font: StrOrBytesPath | BinaryIO | None) -> FreeTypeFont:
+    def freetype(font: StrOrBytesPath | BinaryIO) -> FreeTypeFont:
         return FreeTypeFont(font, size, index, encoding, layout_engine)
 
     try:
@@ -927,7 +947,10 @@ def load_path(filename: str | bytes) -> ImageFont:
             return load(os.path.join(directory, filename))
         except OSError:
             pass
-    msg = "cannot find font file"
+    msg = f'cannot find font file "{filename}" in sys.path'
+    if os.path.exists(filename):
+        msg += f', did you mean ImageFont.load("{filename}") instead?'
+
     raise OSError(msg)
 
 

src/PIL/ImageMath.py

@@ -268,7 +268,7 @@ def lambda_eval(
     args.update(options)
     args.update(kw)
     for k, v in args.items():
-        if hasattr(v, "im"):
+        if isinstance(v, Image.Image):
             args[k] = _Operand(v)
 
     out = expression(args)
@@ -319,7 +319,7 @@ def unsafe_eval(
     args.update(options)
     args.update(kw)
     for k, v in args.items():
-        if hasattr(v, "im"):
+        if isinstance(v, Image.Image):
             args[k] = _Operand(v)
 
     compiled_code = compile(expression, "<string>", "eval")

src/PIL/ImageQt.py

@@ -19,14 +19,23 @@ from __future__ import annotations
 
 import sys
 from io import BytesIO
-from typing import TYPE_CHECKING, Callable
+from typing import TYPE_CHECKING, Any, Callable, Union
 
 from . import Image
 from ._util import is_path
 
 if TYPE_CHECKING:
+    import PyQt6
+    import PySide6
+
     from . import ImageFile
 
+    QBuffer: type
+    QByteArray = Union[PyQt6.QtCore.QByteArray, PySide6.QtCore.QByteArray]
+    QIODevice = Union[PyQt6.QtCore.QIODevice, PySide6.QtCore.QIODevice]
+    QImage = Union[PyQt6.QtGui.QImage, PySide6.QtGui.QImage]
+    QPixmap = Union[PyQt6.QtGui.QPixmap, PySide6.QtGui.QPixmap]
+
 qt_version: str | None
 qt_versions = [
     ["6", "PyQt6"],
@@ -37,10 +46,6 @@ qt_versions = [
 qt_versions.sort(key=lambda version: version[1] in sys.modules, reverse=True)
 for version, qt_module in qt_versions:
     try:
-        QBuffer: type
-        QIODevice: type
-        QImage: type
-        QPixmap: type
         qRgba: Callable[[int, int, int, int], int]
         if qt_module == "PyQt6":
             from PyQt6.QtCore import QBuffer, QIODevice
@@ -65,19 +70,20 @@ def rgb(r: int, g: int, b: int, a: int = 255) -> int:
     return qRgba(r, g, b, a) & 0xFFFFFFFF
 
 
-def fromqimage(im):
+def fromqimage(im: QImage | QPixmap) -> ImageFile.ImageFile:
     """
     :param im: QImage or PIL ImageQt object
     """
     buffer = QBuffer()
+    qt_openmode: object
     if qt_version == "6":
         try:
-            qt_openmode = QIODevice.OpenModeFlag
+            qt_openmode = getattr(QIODevice, "OpenModeFlag")
         except AttributeError:
-            qt_openmode = QIODevice.OpenMode
+            qt_openmode = getattr(QIODevice, "OpenMode")
     else:
         qt_openmode = QIODevice
-    buffer.open(qt_openmode.ReadWrite)
+    buffer.open(getattr(qt_openmode, "ReadWrite"))
     # preserve alpha channel with png
     # otherwise ppm is more friendly with Image.open
     if im.hasAlphaChannel():
@@ -93,7 +99,7 @@ def fromqimage(im):
     return Image.open(b)
 
 
-def fromqpixmap(im) -> ImageFile.ImageFile:
+def fromqpixmap(im: QPixmap) -> ImageFile.ImageFile:
     return fromqimage(im)
 
 
@@ -123,7 +129,7 @@ def align8to32(bytes: bytes, width: int, mode: str) -> bytes:
     return b"".join(new_data)
 
 
-def _toqclass_helper(im):
+def _toqclass_helper(im: Image.Image | str | QByteArray) -> dict[str, Any]:
     data = None
     colortable = None
     exclusive_fp = False
@@ -135,30 +141,32 @@ def _toqclass_helper(im):
     if is_path(im):
         im = Image.open(im)
         exclusive_fp = True
+    assert isinstance(im, Image.Image)
 
-    qt_format = QImage.Format if qt_version == "6" else QImage
+    qt_format = getattr(QImage, "Format") if qt_version == "6" else QImage
     if im.mode == "1":
-        format = qt_format.Format_Mono
+        format = getattr(qt_format, "Format_Mono")
     elif im.mode == "L":
-        format = qt_format.Format_Indexed8
+        format = getattr(qt_format, "Format_Indexed8")
         colortable = [rgb(i, i, i) for i in range(256)]
     elif im.mode == "P":
-        format = qt_format.Format_Indexed8
+        format = getattr(qt_format, "Format_Indexed8")
         palette = im.getpalette()
+        assert palette is not None
         colortable = [rgb(*palette[i : i + 3]) for i in range(0, len(palette), 3)]
     elif im.mode == "RGB":
         # Populate the 4th channel with 255
         im = im.convert("RGBA")
 
         data = im.tobytes("raw", "BGRA")
-        format = qt_format.Format_RGB32
+        format = getattr(qt_format, "Format_RGB32")
     elif im.mode == "RGBA":
         data = im.tobytes("raw", "BGRA")
-        format = qt_format.Format_ARGB32
+        format = getattr(qt_format, "Format_ARGB32")
     elif im.mode == "I;16":
         im = im.point(lambda i: i * 256)
 
-        format = qt_format.Format_Grayscale16
+        format = getattr(qt_format, "Format_Grayscale16")
     else:
         if exclusive_fp:
             im.close()
@@ -174,8 +182,8 @@ def _toqclass_helper(im):
 
 if qt_is_installed:
 
-    class ImageQt(QImage):
+    class ImageQt(QImage):  # type: ignore[misc]
-        def __init__(self, im) -> None:
+        def __init__(self, im: Image.Image | str | QByteArray) -> None:
             """
             An PIL image wrapper for Qt.  This is a subclass of PyQt's QImage
             class.
@@ -199,10 +207,10 @@ if qt_is_installed:
                 self.setColorTable(im_data["colortable"])
 
 
-def toqimage(im) -> ImageQt:
+def toqimage(im: Image.Image | str | QByteArray) -> ImageQt:
     return ImageQt(im)
 
 
-def toqpixmap(im):
+def toqpixmap(im: Image.Image | str | QByteArray) -> QPixmap:
     qimage = toqimage(im)
-    return QPixmap.fromImage(qimage)
+    return getattr(QPixmap, "fromImage")(qimage)

src/PIL/ImageTk.py

@@ -127,10 +127,7 @@ class PhotoImage:
                 # palette mapped data
                 image.apply_transparency()
                 image.load()
-                try:
+                mode = image.palette.mode if image.palette else "RGB"
-                    mode = image.palette.mode
-                except AttributeError:
-                    mode = "RGB"  # default
             size = image.size
             kw["width"], kw["height"] = size
 

src/PIL/ImageWin.py

@@ -98,14 +98,15 @@ class Dib:
                        HDC or HWND instance.  In PythonWin, you can use
                        ``CDC.GetHandleAttrib()`` to get a suitable handle.
         """
+        handle_int = int(handle)
         if isinstance(handle, HWND):
-            dc = self.image.getdc(handle)
+            dc = self.image.getdc(handle_int)
             try:
                 self.image.expose(dc)
             finally:
-                self.image.releasedc(handle, dc)
+                self.image.releasedc(handle_int, dc)
         else:
-            self.image.expose(handle)
+            self.image.expose(handle_int)
 
     def draw(
         self,
@@ -124,14 +125,15 @@ class Dib:
         """
         if src is None:
             src = (0, 0) + self.size
+        handle_int = int(handle)
         if isinstance(handle, HWND):
-            dc = self.image.getdc(handle)
+            dc = self.image.getdc(handle_int)
             try:
                 self.image.draw(dc, dst, src)
             finally:
-                self.image.releasedc(handle, dc)
+                self.image.releasedc(handle_int, dc)
         else:
-            self.image.draw(handle, dst, src)
+            self.image.draw(handle_int, dst, src)
 
     def query_palette(self, handle: int | HDC | HWND) -> int:
         """
@@ -148,14 +150,15 @@ class Dib:
         :return: The number of entries that were changed (if one or more entries,
                  this indicates that the image should be redrawn).
         """
+        handle_int = int(handle)
         if isinstance(handle, HWND):
-            handle = self.image.getdc(handle)
+            handle = self.image.getdc(handle_int)
             try:
                 result = self.image.query_palette(handle)
             finally:
                 self.image.releasedc(handle, handle)
         else:
-            result = self.image.query_palette(handle)
+            result = self.image.query_palette(handle_int)
         return result
 
     def paste(

src/PIL/ImtImagePlugin.py

@@ -58,7 +58,7 @@ class ImtImageFile(ImageFile.ImageFile):
             if s == b"\x0C":
                 # image data begins
                 self.tile = [
-                    (
+                    ImageFile._Tile(
                         "raw",
                         (0, 0) + self.size,
                         self.fp.tell() - len(buffer),

src/PIL/IptcImagePlugin.py

@@ -147,7 +147,9 @@ class IptcImageFile(ImageFile.ImageFile):
 
         # tile
         if tag == (8, 10):
-            self.tile = [("iptc", (0, 0) + self.size, offset, compression)]
+            self.tile = [
+                ImageFile._Tile("iptc", (0, 0) + self.size, offset, compression)
+            ]
 
     def load(self) -> Image.core.PixelAccess | None:
         if len(self.tile) != 1 or self.tile[0][0] != "iptc":
@@ -199,9 +201,13 @@ def getiptcinfo(
 
     data = None
 
+    info: dict[tuple[int, int], bytes | list[bytes]] = {}
     if isinstance(im, IptcImageFile):
         # return info dictionary right away
-        return im.info
+        for k, v in im.info.items():
+            if isinstance(k, tuple):
+                info[k] = v
+        return info
 
     elif isinstance(im, JpegImagePlugin.JpegImageFile):
         # extract the IPTC/NAA resource
@@ -214,7 +220,7 @@ def getiptcinfo(
         # as 4-byte integers, so we cannot use the get method...)
         try:
             data = im.tag_v2[TiffImagePlugin.IPTC_NAA_CHUNK]
-        except (AttributeError, KeyError):
+        except KeyError:
             pass
 
     if data is None:
@@ -237,4 +243,7 @@ def getiptcinfo(
     except (IndexError, KeyError):
         pass  # expected failure
 
-    return iptc_im.info
+    for k, v in iptc_im.info.items():
+        if isinstance(k, tuple):
+            info[k] = v
+    return info

src/PIL/Jpeg2KImagePlugin.py

@@ -18,6 +18,7 @@ from __future__ import annotations
 import io
 import os
 import struct
+from collections.abc import Callable
 from typing import IO, cast
 
 from . import Image, ImageFile, ImagePalette, _binary
@@ -205,7 +206,7 @@ def _parse_jp2_header(
                 if bitdepth > max_bitdepth:
                     max_bitdepth = bitdepth
             if max_bitdepth <= 8:
-                palette = ImagePalette.ImagePalette()
+                palette = ImagePalette.ImagePalette("RGBA" if npc == 4 else "RGB")
                 for i in range(ne):
                     color: list[int] = []
                     for value in header.read_fields(">" + ("B" * npc)):
@@ -286,7 +287,7 @@ class Jpeg2KImageFile(ImageFile.ImageFile):
                 length = -1
 
         self.tile = [
-            (
+            ImageFile._Tile(
                 "jpeg2k",
                 (0, 0) + self.size,
                 0,
@@ -316,8 +317,13 @@ class Jpeg2KImageFile(ImageFile.ImageFile):
             else:
                 self.fp.seek(length - 2, os.SEEK_CUR)
 
-    @property
+    @property  # type: ignore[override]
-    def reduce(self):
+    def reduce(
+        self,
+    ) -> (
+        Callable[[int | tuple[int, int], tuple[int, int, int, int] | None], Image.Image]
+        | int
+    ):
         # https://github.com/python-pillow/Pillow/issues/4343 found that the
         # new Image 'reduce' method was shadowed by this plugin's 'reduce'
         # property. This attempts to allow for both scenarios
@@ -338,8 +344,9 @@ class Jpeg2KImageFile(ImageFile.ImageFile):
 
             # Update the reduce and layers settings
             t = self.tile[0]
+            assert isinstance(t[3], tuple)
             t3 = (t[3][0], self._reduce, self.layers, t[3][3], t[3][4])
-            self.tile = [(t[0], (0, 0) + self.size, t[2], t3)]
+            self.tile = [ImageFile._Tile(t[0], (0, 0) + self.size, t[2], t3)]
 
         return ImageFile.ImageFile.load(self)
 

src/PIL/JpegImagePlugin.py

@@ -372,7 +372,9 @@ class JpegImageFile(ImageFile.ImageFile):
                     rawmode = self.mode
                     if self.mode == "CMYK":
                         rawmode = "CMYK;I"  # assume adobe conventions
-                    self.tile = [("jpeg", (0, 0) + self.size, 0, (rawmode, ""))]
+                    self.tile = [
+                        ImageFile._Tile("jpeg", (0, 0) + self.size, 0, (rawmode, ""))
+                    ]
                     # self.__offset = self.fp.tell()
                     break
                 s = self.fp.read(1)
@@ -423,6 +425,7 @@ class JpegImageFile(ImageFile.ImageFile):
         scale = 1
         original_size = self.size
 
+        assert isinstance(a, tuple)
         if a[0] == "RGB" and mode in ["L", "YCbCr"]:
             self._mode = mode
             a = mode, ""
@@ -432,6 +435,7 @@ class JpegImageFile(ImageFile.ImageFile):
             for s in [8, 4, 2, 1]:
                 if scale >= s:
                     break
+            assert e is not None
             e = (
                 e[0],
                 e[1],
@@ -441,7 +445,7 @@ class JpegImageFile(ImageFile.ImageFile):
             self._size = ((self.size[0] + s - 1) // s, (self.size[1] + s - 1) // s)
             scale = s
 
-        self.tile = [(d, e, o, a)]
+        self.tile = [ImageFile._Tile(d, e, o, a)]
         self.decoderconfig = (scale, 0)
 
         box = (0, 0, original_size[0] / scale, original_size[1] / scale)
@@ -747,17 +751,27 @@ def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
     extra = info.get("extra", b"")
 
     MAX_BYTES_IN_MARKER = 65533
+    xmp = info.get("xmp", im.info.get("xmp"))
+    if xmp:
+        overhead_len = 29  # b"http://ns.adobe.com/xap/1.0/\x00"
+        max_data_bytes_in_marker = MAX_BYTES_IN_MARKER - overhead_len
+        if len(xmp) > max_data_bytes_in_marker:
+            msg = "XMP data is too long"
+            raise ValueError(msg)
+        size = o16(2 + overhead_len + len(xmp))
+        extra += b"\xFF\xE1" + size + b"http://ns.adobe.com/xap/1.0/\x00" + xmp
+
     icc_profile = info.get("icc_profile")
     if icc_profile:
-        ICC_OVERHEAD_LEN = 14
+        overhead_len = 14  # b"ICC_PROFILE\0" + o8(i) + o8(len(markers))
-        MAX_DATA_BYTES_IN_MARKER = MAX_BYTES_IN_MARKER - ICC_OVERHEAD_LEN
+        max_data_bytes_in_marker = MAX_BYTES_IN_MARKER - overhead_len
         markers = []
         while icc_profile:
-            markers.append(icc_profile[:MAX_DATA_BYTES_IN_MARKER])
+            markers.append(icc_profile[:max_data_bytes_in_marker])
-            icc_profile = icc_profile[MAX_DATA_BYTES_IN_MARKER:]
+            icc_profile = icc_profile[max_data_bytes_in_marker:]
         i = 1
         for marker in markers:
-            size = o16(2 + ICC_OVERHEAD_LEN + len(marker))
+            size = o16(2 + overhead_len + len(marker))
             extra += (
                 b"\xFF\xE2"
                 + size
@@ -844,7 +858,7 @@ def _save_cjpeg(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
 ##
 # Factory for making JPEG and MPO instances
 def jpeg_factory(
-    fp: IO[bytes] | None = None, filename: str | bytes | None = None
+    fp: IO[bytes], filename: str | bytes | None = None
 ) -> JpegImageFile | MpoImageFile:
     im = JpegImageFile(fp, filename)
     try:

src/PIL/McIdasImagePlugin.py

@@ -67,7 +67,9 @@ class McIdasImageFile(ImageFile.ImageFile):
         offset = w[34] + w[15]
         stride = w[15] + w[10] * w[11] * w[14]
 
-        self.tile = [("raw", (0, 0) + self.size, offset, (rawmode, stride, 1))]
+        self.tile = [
+            ImageFile._Tile("raw", (0, 0) + self.size, offset, (rawmode, stride, 1))
+        ]
 
 
 # --------------------------------------------------------------------

src/PIL/MpoImagePlugin.py

@@ -26,6 +26,7 @@ from typing import IO, Any, cast
 
 from . import (
     Image,
+    ImageFile,
     ImageSequence,
     JpegImagePlugin,
     TiffImagePlugin,
@@ -145,7 +146,9 @@ class MpoImageFile(JpegImagePlugin.JpegImageFile):
         if self.info.get("exif") != original_exif:
             self._reload_exif()
 
-        self.tile = [("jpeg", (0, 0) + self.size, self.offset, self.tile[0][-1])]
+        self.tile = [
+            ImageFile._Tile("jpeg", (0, 0) + self.size, self.offset, self.tile[0][-1])
+        ]
         self.__frame = frame
 
     def tell(self) -> int:

src/PIL/MspImagePlugin.py

@@ -70,9 +70,9 @@ class MspImageFile(ImageFile.ImageFile):
         self._size = i16(s, 4), i16(s, 6)
 
         if s[:4] == b"DanM":
-            self.tile = [("raw", (0, 0) + self.size, 32, ("1", 0, 1))]
+            self.tile = [ImageFile._Tile("raw", (0, 0) + self.size, 32, ("1", 0, 1))]
         else:
-            self.tile = [("MSP", (0, 0) + self.size, 32, None)]
+            self.tile = [ImageFile._Tile("MSP", (0, 0) + self.size, 32, None)]
 
 
 class MspDecoder(ImageFile.PyDecoder):
@@ -112,7 +112,7 @@ class MspDecoder(ImageFile.PyDecoder):
 
     _pulls_fd = True
 
-    def decode(self, buffer: bytes) -> tuple[int, int]:
+    def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
         assert self.fd is not None
 
         img = io.BytesIO()
@@ -152,7 +152,7 @@ class MspDecoder(ImageFile.PyDecoder):
                 msg = f"Corrupted MSP file in row {x}"
                 raise OSError(msg) from e
 
-        self.set_as_raw(img.getvalue(), ("1", 0, 1))
+        self.set_as_raw(img.getvalue(), "1")
 
         return -1, 0
 

src/PIL/PSDraw.py

@@ -17,7 +17,7 @@
 from __future__ import annotations
 
 import sys
-from typing import TYPE_CHECKING
+from typing import IO, TYPE_CHECKING
 
 from . import EpsImagePlugin
 
@@ -28,15 +28,12 @@ from . import EpsImagePlugin
 class PSDraw:
     """
     Sets up printing to the given file. If ``fp`` is omitted,
-    ``sys.stdout.buffer`` or ``sys.stdout`` is assumed.
+    ``sys.stdout.buffer`` is assumed.
     """
 
-    def __init__(self, fp=None):
+    def __init__(self, fp: IO[bytes] | None = None) -> None:
         if not fp:
-            try:
             fp = sys.stdout.buffer
-            except AttributeError:
-                fp = sys.stdout
         self.fp = fp
 
     def begin_document(self, id: str | None = None) -> None:

src/PIL/PalmImagePlugin.py

@@ -173,6 +173,7 @@ def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
 
     flags = 0
     if im.mode == "P" and "custom-colormap" in im.info:
+        assert im.palette is not None
         flags = flags & _FLAGS["custom-colormap"]
         colormapsize = 4 * 256 + 2
         colormapmode = im.palette.mode