[SOLVED] Blurry Thumbnail Fix in XnView MP – Full Resolution Thumbnails Working Now!

 

✅ [SOLVED] Blurry Thumbnail Fix in XnView MP – Full Resolution Thumbnails Working Now!

Hey everyone,
I was facing an issue where thumbnails in XnView MP looked blurry or low-quality, even when the actual image was perfectly sharp. After trying many settings, I finally found a solution that works perfectly — so I’m sharing it here for anyone who’s struggling with the same issue.
🔧 Working Fix for XnView MP Thumbnail Quality:
Step-by-Step:

    Open XnView MP
    Go to:
    Tools → Settings → Catalog
    ✅ Uncheck “Enable Catalog”

    Close XnView MP completely.

    Open the following file in Notepad:

C:\Users\<YourUsername>\AppData\Roaming\XnViewMP\xnview.ini

Find this line:

useEmbeddedThumb=true

and change it to:

useEmbeddedThumb=false

Save and close the .ini file.

Reopen XnView MP, then go to:

    Tools → Settings → Browser → Thumbnail → Appearance

    Set:

        ✅ Custom Thumbnail Size

        Width: 512

        Height: 512

    Click OK, then close and restart XnView MP once again.

🎉 Result:

Now, thumbnails are crystal-clear and generated from the full image, not the embedded low-res preview. This solution made a huge difference for me!
📢 Message to XnView Developers:

    If you're reading this — please consider making this workflow more intuitive or fixing it in a future update. Many users face this but can't easily figure it out.

Hope this helps someone out there.
Big thanks to the XnView team — just a small tweak made it awesome. 🙌