I tried this out, and I have to admit it does a great job. I uploaded full sized images, saw how much they were compressed by JPEDmini, then compressed the originals in irfanview by the same amount and then compared the two resulting image files. Irfanview was slightly lower quality every time. And for some reason was about twice the file size. I obviously don't know how to use irfanview to compress an image to a specific file size.
Anyway, this shows that JPEGmini is better at this than Irfanview. Smaller files, better quality. The compressed images are virtually indistinguishable from the originals.
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