Journalism Question:

Photo editing is to remove blamishes, errors or unwanted
elements using tools such as PhotoShop, Painter or others.
One of the most common uses of photo editing/retouching is
to prepare photos for catalogues, magazines and newspapers.
Some of the best photo editors/retouchers produce posters
and post cards. Self employment in this area is usually
associated with event photography such as weddings, class
pictures, boudoir photos and so on.