I am having this issue with some pics I have posted on Facebook, where a certain individual thinks it's fine to take my pics, and use the "Piknik" app. over there, to change them a bit, (color) adding text, removing elements that are in my pics..etc. Is there a way to stamp my pics so that nobody can steal them without my permission? Thanks (I find it a bit rude when someone takes my photo, enhances it a bit, and them passes it off as their own)!

