XnView Software

Hi,

I'm a bit short-sighted, so I prefer large Thumbnails (250 x 250). I've already set the Thumbnail quality to high and disabled the use of the embedded EXIF miniature picture. But the thumbnail resolution still remains bad for all jpegs. The thumbnails for e.g. tiff files are obviously much better. (Catalog enabled and new Miniature pictures created.)

What's wrong?

Welcome to the forum, doc-ralf.

Please try these steps:

1. Go to Tools → Settings... → Catalog → Catalog and click on the Get thumbnail size button.
2. Go to View → Rebuild thumbnails.