Interface ridiclously small scale for some reason

Thank you very much

The latest build is working fine but not for YacReader.
Perhaps you've only added HiDPI support for the Library?

Attached example with YacReader (top) vs CDIsplayEX (bottom)

No, it is enabled in both apps. I wonder if CDIsplayEX is just sharpening the images with a filter. Do you know the image resolution of that page?

Yes it's 1920px (don't have its dpi).
CDIsplayEX offers an option tu adjust the Lanczos quality. I've put that to the minimum.
(btw it's a nice option )

The workaround i've found for YacReader is to change Windows HiDPI settings as attached.
This way the images are rendered properly.

I've attached an example of YadReader with thise settings ON (top image) and OFF (bottom)

I will take a look, something is definitely off.

Do you have more than one screen?

Good quetsion! Yes i have my main monitor 4K 3840x2160p and a 2nd monitor 2560x1440p

Does it work properly if you disconnect your second display?

Unfortunately no...

Do you mind trying this build? github.com/YACReader/yacreader-dev-build...es/tag/9.8.2.2201131