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Documentation Update for PNG zlib DOS

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wiredfool 2014-12-30 17:06:38 -08:00
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docs/handbook/image-file-formats.rst
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@ -332,6 +332,14 @@ The :py:meth:`~PIL.Image.Image.open` method sets the following
Transparency color index. This key is omitted if the image is not a
transparent palette image.
``Open`` also sets ``Image.text`` to a list of the values of the
``tEXt``, ``zTXt``, and ``iTXt`` chunks of the PNG image. Individual
compressed chunks are limited to a decompressed size of
``PngImagePlugin.MAX_TEXT_CHUNK``, by default 1MB, to prevent
decompression bombs. Additionally, the total size of all of the text
chunks is limited to ``PngImagePlugin.MAX_TEXT_MEMORY``, defaulting to
64MB.
The :py:meth:`~PIL.Image.Image.save` method supports the following options:
**optimize**