1479849 - PDF rendered incorrectly: white gap lines between neighbouring rectangles

Status: RESOLVED DUPLICATE of bug 1269455

(Firefox :: PDF Viewer, defect, P3)

Description

[Manuel Haim]

Attachment: frame-on-background.pdf

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.1.1 Safari/605.1.15

Steps to reproduce:

Opened the attached PDF file (created with OpenOffice) which contains adjacent same-colored rectangles (see https://bz.apache.org/ooo/show_bug.cgi?id=127828 for further information).


Actual results:

Thin white gap lines are visible between the adjacent rectangles.


Expected results:

There should be no gap lines between the adjacent rectangles. Adobe Reader renders the PDF correctly.

Comment 1

[Daniel Bodea [:danibodea]]

I can confirm the reproduction of this bug:

I have tested on the Adobe Acrobat Reader, the only found PDF viewer that does NOT display rectangle lines (as intended).
Another PDF Viewer, Sumatra PDF, will display the white lines around the "TEST" string (unintended).

Then, I tried opening the PDF document using the 3 main version of Firefox (Release - v63.0a1, Beta - v62.0b14, Release - v61.0.1) and the 3 main OS types (Windows 10, Ubuntu 18.04 and Mac OS X 10.13.3). The reproduction is the same across all of these combinations. There are some white lines displayed around the "TEST" string from the attached PDF file.

Please also note that this issue does not occur in the case of the Chrome browser.

The bug's component is set to (Firefox) PDF Viewer.

Comment 2

[Brendan Dahl [:bdahl]]

There's some investigation into this upstream https://github.com/mozilla/pdf.js/pull/10016