Free Software Downloads (for photo edition)
Autostitch
Autostitch can automatically join multiple consecutive images together to create a single, panoramic view. It does this automatically without user involvement or intervention.
Photofiltre
PhotoFiltre is a complete image editing and effects package, that will not only amaze you with features but also the fact that it is free (for personal use). It offers all the standard editing features (selection, clone brush, paint brush etc.) as well as a large selection of image effects, photo masks, image adjustments, thumbnail browser and much more.