[poppler] Supporting PDF 1.6 UserUnit

Leonard Rosenthol leonardr at pdfsages.com
Tue Jul 12 03:08:45 EST 2005


At 12:28 PM 7/11/2005, Kristian Høgsberg wrote:
It's on bugs.freedesktop.org, specifically:

>   https://bugs.freedesktop.org/show_bug.cgi?id=3020

         This one I can duplicate with standard Xpdf/Splash render...

         I'll send it off to Derek to see if he's already addressed this.


>   https://bugs.freedesktop.org/show_bug.cgi?id=3098

         This one comes out just with Xpdf/Splash 
just fine.  Is it possible that the poppler 
caller isn't setting an alpha-enabled output (eg. RGB vs. RGBA)?


>The alpha masks is also difficult to implement 
>with the current splash backend, since it 
>doesn't support alpha channels and compositing.

         Splash supports limited alpha (basic stuff, not "filters").


Leonard

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Leonard Rosenthol                            <mailto:leonardr at pdfsages.com>
Chief Technical Officer                      <http://www.pdfsages.com>
PDF Sages, Inc.                              215-938-7080 (voice)
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