photo editing is done for many reasons. many photos of models are edited to remove blemishes or make the model "better". this is usually called "retouching", "airbrushing" or "photoshopping", even if photoshop or airbrushes are not used. other reasons to edit a photo include fixing errors (red eye, contrast, brightness, etc.), practical jokes, and to trick people. photo editing is also used to make completely new images. photo editing is sometimes called photo manipulation, a term which sounds negative.