Photographic editing is the process of reworking an original photo, either produced by film or digital, to create the artistic vision of the photographer.
See also the post-processing and image-processing tags, which may be what you want instead of this one. While editing a photo is quite arguably what one does in a program like Adobe Photoshop, just as one edits text documents in a word processor, the line between editing in that sense and post-processing is so fuzzy that it's better to avoid the confusion.
Some existing questions with this tag which exemplify the way in which it should be used:
