[poppler] Poppler and 16 bit images, workaround or not?

Brad Hards bradh at frogmouth.net
Sat Apr 12 17:04:17 PDT 2008

On Sunday 13 April 2008 09:32:20 am Albert Astals Cid wrote:
> Hi, poppler is not prepared at all for 16 bits per component images,
> everywhere it assumes a component of the color fits into a Guchar (8 bits).
> You can see the consequences with the pdf present at
> http://bugs.kde.org/show_bug.cgi?id=158165
> I have attached a 5 line patch that "fools" poppler and makes it use the
> high 8 bits and discard the other 8.
> This makes it "work" but it's obviously a workaround and not the real
> solution and i have only this pdf using 16 bits per component and it's
> really a "test document" not a real one.
> So i'm hesitating if incorporating the patch (with comments explaining the
> workaround) or not doing it.
As long as the comments explain it (e.g. a pointer to the bug, and a little 
explanation of the workaround), I'd suggest applying it.

It isn't very intrusive, and shouldn't affect much else.

You can revisit it / revert it if the next example has a lot of problems.


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