XnView Software

I can see slight image distortion when opening 4K image at the first time.

Funny thing - you can see that distortion only when you literally doing nothing but staring at the image or moving mouse around. Every UI action like hitting ALT key or opening right click menu or scrolling images will fix that distortion instantly and without image reload!

1) 4K monitor, Windows 10, Nvidia GPU, 150% desktop scale
2) open 4K image
3) slight image distortion appears around column #38
PNG for testing

Thanks to your detailed description I can reproduce

Still bugged.

do you have always the problem? What do you have in Settings>View?

xnview wrote: Tue May 06, 2025 8:01 am do you have always the problem? What do you have in Settings>View?

Sorry for the late reply, but I can no longer reproduce this bug. On the other hand, I still notice similar image distortions, but this time they don't go away, no matter what you do with the UI except switch to fullscreen mode or resize the XnView window. I can create a new bug report if you'd like.

This "new" distortion can also occur in photos/images, but it's often difficult to notice in photos.

Windows 10 or Windows 11, 4K with desktop scaling set to 150%. I can trigger it way more often on Win10.

Steps to reproduce:
1) Open test image.png
2) Look for text distortions (second text line for example)
3) If you don't see the distortions immediately, then try to resize the XnView window with your mouse.

Optional steps:
4) After it finally showed up you can drag the window again the distortion may disappear for a while.
5) Switch to full-screen mode without the UI to 100% eliminate the distortion.