Retouching

Retouching involves removing blemishes, minor scars, softening wrinkles, maybe a stray hair, or a small stain on clothing.


Reworking

Reworking typically involves changing a significant portion of the image, such as the background. Often to make it less cluttered or remove unfavorable parts of an image (such as someone's tush), or to change out a head because someone isn't smiling.