Improve screenshot functionality in PDF viewer - scrolling screenshot

[KERR]

In Firefox, on a normal webpage, you can right click and go Take Screenshot. This allows you to take a scrolling screenshot as well, which not possible using standard screenshot software like Greenshot or Snipping Tool. Thumbs up!

I just found that you can't do a scrolling screenshot for a PDF - you can only screenshot the visible parts.

Probably a very niche use case but would've come in handy as I had to OCR some images in a PDF file today, and Firefox OCR extensions were unable (or unwilling?) to work in PDF view, so I screenshotted the PDF file then opened the .JPG in Firefox again. OCR tools were then able to do their thing.

[Jon]

(Note: similar ideas have been merged into this thread)

[Kevin_26]

I see that this threat was opened in 2022. How come it's still not fixed yet? Is it a very complicated feature? Not trying to be rude. Just trying to understand is all.

[sfoster]

The issue with the PDF viewer is another instance of 2 much-reported and duplicated bugs: 

https://bugzilla.mozilla.org/show_bug.cgi?id=1643719

https://bugzilla.mozilla.org/show_bug.cgi?id=1646063

Its somewhat complicated and there isn't an obvious solution that will address all cases, but its also likely there's a solution that would be good-enough for a lot of pages - including the PDF viewer. The real issue is one of time and resources. A couple of years ago we had a push to get Screenshots updated and fix a lot of its legacy bugs. Since then its been in maintenance mode and pushed down the priority list. I would love to see this bug fixed and would be happy to mentor a contributor if someone wanted to take it on.