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Added orientation note [ci skip]

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Andrew Murray 2019-10-11 22:40:31 +11:00
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docs/handbook/concepts.rst
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@ -104,6 +104,15 @@ the file format handler (see the chapter on :ref:`image-file-formats`). Most
handlers add properties to the :py:attr:`~PIL.Image.Image.info` attribute when
loading an image, but ignore it when saving images.
Orientation
-----------
A common element of the :py:attr:`~PIL.Image.Image.info` attribute for JPG and
TIFF images is the EXIF orientation tag. This is an instruction for how the
image data should be oriented. For example, it may instruct an image to be
rotated by 90 degrees, or to be mirrored. To apply this information to an
image, :py:meth:`~PIL.ImageOps.exif_transpose` can be used.
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