From VicMan Software:
Jpeg Fixer is an easy in use and extremely powerful program that lets you recover images, damaged by low-quality JPEG compression. It uses unique technology that lets even novice easily, quickly, and effectively remove so-called 'JPEG artifacts' and 'blotchy look' from his/her images. Unlike all other methods, our intellectual science-intensive technology developed by graduated scientists doesn't damage your photos simply by blurring them, but recovers them meaning that your images will look like they looked before JPEG compression! Jpeg Fixer is useful for everyone who deals with JPEG images. It's a must have tool for design studios and publishers as well!