Bug 17919 - Improper rendering of text with transparent background.
Summary: Improper rendering of text with transparent background.
Status: RESOLVED FIXED
Alias: None
Product: poppler
Classification: Unclassified
Component: cairo backend (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: poppler-bugs
QA Contact:
URL: https://secure.paizo.com/download/pat...
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-10-05 14:20 UTC by Hubert Figuiere
Modified: 2009-07-31 08:45 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
screenshot (46.36 KB, image/jpeg)
2008-10-05 14:20 UTC, Hubert Figuiere 		Details
View All

Description Hubert Figuiere 2008-10-05 14:20:29 UTC 
Created attachment 19394 [details]
screenshot

Download and decompress the document:

https://secure.paizo.com/download/pathfinder/PZO9000-2E.zip

Open it in Evince.

The first page has the word "Pathfinder" on a white rectangle while it should be "transparent" to show the existing background.

xpdf does not have the problem. Attached a screen shot: top is Evince/poppler cairo, bottom is xpdf.

I have poppler:

libpoppler3-0.8.7
Comment 1 Hubert Figuiere 2008-10-05 14:23:09 UTC 
also the PDF thumbnailer exhibit the problem.
Comment 2 Albert Astals Cid 2008-10-05 14:34:53 UTC 
Confirmed to be a cairo backend only problem
Comment 3 Carlos Garcia Campos 2009-06-06 07:28:43 UTC 
Looking at the commands executed I see:

gfx state dict: << /OPM 1 /BM /Normal /CA 1 /OP false /SMask /None /ca 1 /AIS false /op false /Type /ExtGState /SA true >>

/BM is Blend Mode which is not implemented in the cairo backend.
Comment 4 Carlos Garcia Campos 2009-07-31 08:45:34 UTC 
Fixed in git master (requires cairo from git master to work)

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.