Everyone knows celebrities edit their pics to make them look as perfect as possible, but when stars are guilty of an embarrassing Photoshop fail, only then do fans learn exactly how far some famous people will go to have a "thigh gap." Although we often wonder why celebs risk the public ridicule to manipulate their pics, the reality is that most people can't spot bad Photoshop mistakes, which is why stars think they can keep getting away with it. Fortunately, learning how to spot edited images is easier than you think. It's all about looking for anything that looks "off," from bending doorways to missing hands (and yes, that happens). Below, eight steps to learn how to successfully spot bad celebrity Photoshop.

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