I'm thinking that could simply be what you get if you use a photoediting program to do a scan of an otherwise perfectly legit document. If so, it doesn't mean much. OTOH, it could mean a lot. Maybe someone who really understands this sort of thing can give us a lesson on what actually happens to the .jpg file header, if anything, when you scan a document and generate a .jpg.
If we don't get an answer, I'll try to run the experiment myself with Photoshop.
Yeah.
I brought up that same point last night.
http://www.freerepublic.com/focus/news/2308435/posts?page=125#125