Bug 702083 - Undesired seam in rendered page
Summary: Undesired seam in rendered page
Status: RESOLVED DUPLICATE of bug 702074
Alias: None
Product: MuPDF
Classification: Unclassified
Component: mupdf (show other bugs)
Version: master
Hardware: PC Windows 10
: P4 normal
Assignee: MuPDF bugs
URL:
Keywords:
: 702081 (view as bug list)
Depends on:
Blocks:
 
Reported: 2020-02-05 02:42 UTC by Krzysztof Kowalczyk
Modified: 2025-11-03 12:32 UTC (History)
0 users

See Also:
Customer:
Word Size: ---

Attachments
Repro file (100.66 KB, application/pdf)
2020-02-05 02:42 UTC, Krzysztof Kowalczyk 		Details
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Krzysztof Kowalczyk 2020-02-05 02:42:14 UTC 
Created attachment 18832 [details]
Repro file

Originally reported at https://github.com/sumatrapdfreader/sumatrapdf/issues/587

Compared to other renderers, like Chrome, there's a gray line in the middle of the page.
Comment 1 Tor Andersson 2020-02-13 09:36:12 UTC 
There's a gray line in several other renderers I've tried too: ghostscript, evince, etc. Converting to SVG and viewing in Firefox and Inkscape also shows a gray line down the middle.

The input page consists of a gray background, covered with yellow rectangles. Since we anti-alias the edges, the gray background shows through in some of the rectangle edges, depending on zoom factor.

If you render without antialiasing, then you will avoid the bleed through effect.

To turn off AA for vector art but still keep text anti-aliased, use fz_set_graphics_aa_level(ctx, 0).
Comment 2 Krzysztof Kowalczyk 2020-02-25 00:51:41 UTC 

*** This bug has been marked as a duplicate of bug 702081 ***
Comment 3 Krzysztof Kowalczyk 2020-02-25 00:53:32 UTC 
*** Bug 702081 has been marked as a duplicate of this bug. ***
Comment 4 Tor Andersson 2025-11-03 12:32:02 UTC 

*** This bug has been marked as a duplicate of bug 702074 ***