Bug 3098

Summary: Transparencies
Product: poppler Reporter: josuealcalde
Component: generalAssignee: Kristian Høgsberg <krh>
Status: RESOLVED DUPLICATE QA Contact:
Severity: enhancement    
Priority: high CC: desintegr, ed, freedesktop, giallu, jan, luis.villa, uraeus, wrobell, zdzichu
Version: unspecified   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments: A PDF which recreate the problem
Canon EOS 20D instruction manual
svg file, which can be converted with svg2pdf to reproduce problem with transparency

Description josuealcalde 2005-04-22 04:09:26 UTC
When I convert an SXI from Open Office Presentation with PNG images which use
transparencies, the transparencies are show as a black box.
Comment 1 josuealcalde 2005-04-22 04:12:14 UTC
Created attachment 2505 [details]
A PDF which recreate the problem
Comment 2 Kristian Høgsberg 2005-05-18 22:20:49 UTC
*** Bug 3187 has been marked as a duplicate of this bug. ***
Comment 3 Kristian Høgsberg 2005-05-18 22:25:47 UTC
*** Bug 3327 has been marked as a duplicate of this bug. ***
Comment 4 Kristian Høgsberg 2005-05-20 19:20:17 UTC
poppler doesn't (neither does xpdf) implement image transparency using image
masks.  It would be nice to have, but it's not actually a bug, it's just not
supported.
Comment 5 Luis Villa 2005-06-03 08:08:58 UTC
Hrm. It's a missing feature, technically speaking, but to the user it is very
definitely a bug. :/
Comment 6 Jan Ingvoldstad 2005-08-15 16:53:10 UTC
Created attachment 2886 [details]
Canon EOS 20D instruction manual

An additional PDF with basically the same problem.

The work-around is, of course, to not use popper unless at times when one's
feeling particularly idealistic. ;)
Comment 7 Jan de Groot 2005-11-24 04:01:59 UTC
*** Bug 4438 has been marked as a duplicate of this bug. ***
Comment 8 Damien Gombault 2005-12-19 17:02:14 UTC
*** Bug 5364 has been marked as a duplicate of this bug. ***
Comment 9 wrobell 2005-12-29 23:49:17 UTC
Created attachment 4189 [details]
svg file, which can be converted with svg2pdf to reproduce problem with transparency

i am attaching svg file, which contents is rendered as black boxes
when converted to pdf. i think it is a problem with transparency, too.
you can convert from svg to pdf using svg2pdf or inkscape.

in xpdf 3.01 it renders ok, but in xpdf 3.00 there are black boxes, too.

using evince 0.4.0, poppler 0.4.3.
Comment 10 Nickolay V. Shmyrev 2006-01-22 09:52:05 UTC
xpdf 3.01 is imported, is this problem fixed already?
Comment 11 Tomasz Torcz 2006-01-23 02:03:35 UTC
No, it still isn't fixed (poppler & evince both at 0.5.0). Didn't you checked
attrached PDF?
Comment 12 wrobell 2006-01-23 23:52:11 UTC
Nickolay, as I can see
- sxi.pdf works fine with xpdf 3.01 but fails with evince 0.5.0 + poppler 0.5.0
- pdf file created from attached svg file works fine with evince 0.5.0 + poppler
0.5.0
Comment 13 Ed Catmur 2006-02-08 07:21:35 UTC
CairoOutputDev needs to implement drawMaskedImage and drawSoftMaskedImage.
They're implemented in SplashOutputDev (so xpdf/poppler works) but it won't be a
straightforward port.
Comment 14 Jeff Muizelaar 2006-02-10 09:51:07 UTC

*** This bug has been marked as a duplicate of 5540 ***

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