[Poppler-bugs] [Bug 32340] pdftohtml renders images vertically flipped

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=32340

--- Comment #5 from Ihar Filipau <thephilips at gmail.com> 2012-03-11 11:58:12 PDT ---
Created attachment 58294
  --> https://bugs.freedesktop.org/attachment.cgi?id=58294
the patch to flip image h/v if PNG support is present

A patch for pdftohtml to flip the images vertically and/or horizontally.

Gotchas:
(1) image pixels are read fully into the memory, iow image must fit into the
RAM
(2) flip can be done on PNGs, the format we have control over, thus the flipped
JPEGs are internally converted into the PNGs (if PNG support is enabled,
otherwise they are dumped as is).

Please note that the patch applies on top of the patch from bug 47186

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