| Anytime you save a jpeg you lose. JPGS are considered a "lossy" file format because of the way it compresses an image. How much it looses depends on the photo.
Professionally, in my work environment I never save a jpeg back to itself. It will always get saved as a tif with no compression if I feel I may need to work on it later. If I give it to a client I will keep the tif and save as a new jpeg. |