You’ve taken pictures with your digital camera and they are saved as a JPG on the memory card. You want to edit those photos to enhance them in some way. It is very important that you do NOT save the working files as JPG format. JPG is a lossy format and the quality will degrade EVERY time the file is saved. So if you save the file and open again later to edit, it will get even worse the next time you save. The more compression you use, the faster the files will degrade. If working in Corel PHOTO-PAINT, I’d suggest using the CPT format for your working files. TIF and PNG are also good choices though they won’t save objects, lenses and other features unique to PHOTO-PAINT. Photoshop users should save as PSD for the same reasons. Once the file is absolutely complete, then you can export a copy of the finished image to JPG for posting on the Web or e-mailing to others.