By the way, if you have JPG files that are unacceptable to some software - or can't be uploaded to Farcebork or whatever, try re-saving them with IrfanView.
My portable scanner does something to the header that leaves a "funny smell." Hardly anything will touch them except Irfanview.
P.S. Irfanview will also tell you if your alleged JPG is really a GIF, PNG, or whatever with the wrong extension, and offer to rename it. It's one smart proggie.