Images are washed out in PDF file. The same PDF Renders fine with QuickLook and Adobe Illustrator.

[futuremotiondev]

SumatraPDF version

• v3.6.17065 64-bit

Describe the bug When I open a specific PDF file, the images are washed out. If I open the same PDF in QuickLook (https://github.com/QL-Win/QuickLook) or Adobe Illustrator, the PDF renders properly. Here is the PDF: Mastering Logo Grids.pdf

To Reproduce Steps to reproduce the behavior:

1. Open the PDF supplied above in SumatraPDF.
2. Observe the washed out colors.

I have HDR enabled on my monitor... I am wondering if that might be the culprit?

Expected behavior

Sumatra renders the PDF properly.

File that reproduces the problem

Mastering Logo Grids.pdf

Screenshots If applicable, add screenshots to help explain your problem.

Here is QuickLook:

Here is Illustrator:

Here is the built-in PDF viewer in Firefox:

And now... Here is SumatraPDF:

Additional context

Again, I'm not sure what's causing this. HDR, Color Profile Issues, Etc. But the issue is very noticeable.

Any further investigation into this behavior would be greatly appreciated. I love Sumatra, but something is wrong with the rendering.

Thanks.

[futuremotiondev]

Just a small update: I disabled HDR on my display, and the issue persists. So I think that's ruled out.

I also installed the non-preview release of Sumatra, and the bug still occurs in the stable version.

[GitHubRulesOK]

there is a distinct difference in how MuPDF sees the colours and Acrobats view so side by side on a fairly conventional LCD screen

So part of the issue is that it's not a good use of static image.

[futuremotiondev]

Update: The issue seems to have resolved itself after a reboot. I don't know why or how, but PDFs are rendering fine now in Sumatra. Screenshot: