[okular] [Bug 424817] Ugly rendering of images containing text in PDF files

[Albert Astals Cid]

https://bugs.kde.org/show_bug.cgi?id=424817

Albert Astals Cid <aacid at kde.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REPORTED                    |NEEDSINFO
         Resolution|---                         |WAITINGFORINFO

--- Comment #10 from Albert Astals Cid <aacid at kde.org> ---
(In reply to Jan Rathmann from comment #9)
> Thanks for the screenshot, it looks indeed much bigger on 75% than on my
> system! If I set zoom to 113% in Okular I get exactly the same rendering
> (size and image quality) as on your screenshot.
> So if you set zoom to ~50%, does it look like my screenshot with zoom set to
> 75%?
> 
> If I set zoom to 100%, the document width is 23.5 cm as it should be.
> 
> For my testing I didn't actually install KDE Neon - it was sufficient just
> to boot the live image.
> 
> The reason why I tested with KDE Neon live image was that I considered it
> sort of a unmodified "reference distribution" of KDE (correct me if I'm
> wrong), and that I wanted to verify that I can reproduce the bug in a
> "clean", unmodified environment to rule out possible misconfigurations on my
> main system.
> 
> Which distribution/setup do you use? Perhaps I can mimic that and try to
> reproduce how it looks on your screenshot.

This is probably related to screen sizes. Your screen is much bigger than mine
but with the same resolution, so you get less quality than me "per percentage".
Because for your 100% less pixels are needed that for my 100%, so i see it
better than you at 100%.

Can you attach a screenshot of the document at 100% in your screen to confirm?

Anyhow, [mostly] that solved that, this is a poppler bug in which the Splash
renderer seems to be not so great when resampling text.

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