Improve the quality of JPEG images.. Jpeg Enhancer is an advanced application that lets you remove JPEG artifacts and blotchy look from JPEG images, making them look as if saved with a 100% (super-fine) quality

It is based on advanced science-intensive technology. If you are a home user it will help you improve your digital photo quality. It is also a must-have for publishers, design studios and web pros to help repair over-compressed images supplied by their clients.
You can download jpeg enhancer 1.8 here: