If I have saved an image in JPG format after doing some edits, is there a way to identify that it is edited with Photoshop?
Answer
it depends what you're looking for.
1) File Meta-info: the meta information contained within the file can reveal which s/w saved the photo last (with possible edits). But this can easily be changed afterwards or deleted by another s/w.
2) Image data: now, if you're looking to find out if a photo file has been tempered (edits made to it), you should look into Error Level Analysis and photo forensics.
errorlevelanalysis.com, hackerfactor.com and other such software are only made available to governments!
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