1703683 - Broken graphics rendering on a PDF file

Status: VERIFIED FIXED

(Firefox :: PDF Viewer, defect, P3)

Description

[:gerard-majax]

Attachment: Correct result

While browsing the interwebs, I came accross a PDF file that has broken rendering in nightly: https://dl.ubnt.com/datasheets/poe/PoE_Adapters_DS.pdf

I made sure I was on latest nightly but it still repros.

STR:
0. Download the file

1. Open in Firefox
2. Open in Evince

Expected:
On page 2, the graphics for ESD protections are layed out the same way

Actual:
On page 2 under Firefox, the graphics for ESD protections are over the left text.

Comment 1

[:gerard-majax]

Attachment: Current Firefox result

Comment 2

[:gerard-majax]

This is running 20210407094544 on Ubuntu 20.10, under Wayland

Comment 3

[Calixte Denizet (:calixte)]

I can confirm the issue with Firefox nightly.
But I cannot reproduce it using pdf.js/master with chrome stable.
As far as I remember the only piece of code which is chrome specific:
https://github.com/mozilla/pdf.js/blob/master/src/display/canvas.js#L54-L199
And it remembers me the comment I made here:
https://github.com/mozilla/pdf.js/issues/12798#issuecomment-753336779

Comment 4

[Calixte Denizet (:calixte)]

Attachment: PoE_Adapters_DS.pdf

Comment 6

[Brendan Dahl [:bdahl]]

Yeah, this is another case of the correct transformation being lost do the smask.

Comment 7

[Monica Chiorean]

I was able to reproduce the issue on Win10 using build 89.0a1 (20210407212527).
Verified as fixed on Win 10/Mac 10.13/Ubuntu 20.4 using build 96.0b3(20211209163454).