Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Jei jums reikia pagalbos, užduokite naują klausimą.

change default background color for pdf viewer

  • 4 replies
  • 1 has this problem
  • 2 views
  • Paskiausią atsakymą parašė cor-el

gonzalez1814
gonzalez1814
more options

Hello,

I updated to macos Monterey yesterday and I guess I guess I also my firefox updated to 102.0.1 (64-bit)... Anyway, I was very much used to have a white background in firefox's built-in pdf viewer when viewing pdfs that really have a white background (for example if you download it and check it with Adobe reader, or any reader other than the viewer built-in the browser).

Now the background color is gray, and it's not convenient for me at all. I could not find the magic setting that allow to changing this behaviour... I do not use themes, so I do not mind changing something there if needed.

Could any guru help here please ? That would be much appreciated.

Hello, I updated to macos Monterey yesterday and I guess I guess I also my firefox updated to 102.0.1 (64-bit)... Anyway, I was very much used to have a white background in firefox's built-in pdf viewer when viewing pdfs that really have a white background (for example if you download it and check it with Adobe reader, or any reader other than the viewer built-in the browser). Now the background color is gray, and it's not convenient for me at all. I could not find the magic setting that allow to changing this behaviour... I do not use themes, so I do not mind changing something there if needed. Could any guru help here please ? That would be much appreciated.
Pridėtos ekrano nuotraukos

All Replies (4)

Chris Ilias
Chris Ilias
  • Moderator
more options

Hi, I'm not sure about this, but I think the background colour is determined by the PDF file itself. I'm unable to test the file you posted an image of, but when I try my test file at https://ilias.ca/tests/MIDI_400_review.pdf the background is white. Does it display as grey to you?

gonzalez1814
gonzalez1814 Klausimą uždavęs asmuo
more options

Sorry for the late answer. When I tried your file, for me it is displayed in gray, see attachment.

Any suggestion on how to get rid of the gray background and have it displayed as white ?

Thanks a lot for any advice

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

By default Firefox uses these system colors: Canvas and CanvasText.

Related prefs for about:config:

  • pdfjs.pageColorsBackground = Canvas (#FFFFFF)
  • pdfjs.pageColorsForeground = CanvasText (#000000)
cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

See also:

  • 1778068 - PDF Viewer should not set the background of PDF documents to browser.display.background_color (fixed for 104)

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html)

Modified by cor-el