Bad idea. Pretty sure bitmaps and pngs don't remove file path infos.Let's say you run windows then your ID or the ID of the shop that sold you that computer is in Microsoft's database (if you bought it legally) and also your directory filepath, which you've just uploaded for a particular image. i.e. C:\blah\johnsanders\image.jpgIt's possible that the name in the filepath is sufficiently unique... Most people use their first name. But I wouldn't be comfortable with that.