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List modes that can be used when saving PDFs

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Andrew Murray 2023-03-13 00:07:53 +11:00
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commit da2083fb8d
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docs/handbook/image-file-formats.rst
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@ -1457,8 +1457,13 @@ PDF
^^^
Pillow can write PDF (Acrobat) images. Such images are written as binary PDF 1.4
files, using either JPEG or HEX encoding depending on the image mode (and
whether JPEG support is available or not).
files. Different encoding methods are used, depending on the image mode.
* 1 mode images are saved using TIFF encoding, or JPEG encoding if libtiff support is
unavailable
* L, RGB and CMYK mode images use JPEG encoding
* P mode images use HEX encoding
* RGBA mode images use JPEG2000 encoding
.. _pdf-saving: