User:SOTO/Forum Archive/The Panopticon/@comment-24894325-20151112001848/@comment-10983683-20151112014119

Jpg images have a "quality" value. Just dropping that from 100 to 80 can cut in half the file size with no notable difference. Pixlr is a super easy to use free online tool that lets you do that, and almost all image editors should have that capability.

Also, it's funny you bring up the large Big Finish covers, because I just started a project to delete and replace the png ones a few days ago.

The 100 kb limit is in no way unreasonable, and it's not difficult to get images that look good within it.