WinZip 12 supports lossless JPG compression
Probably the biggest changes in WinZip 12 have to do with its handling of image files. WinZip now has the ability to compress JPEG files by up to 25% without any quality loss. There's also a new Zip from Camera Wizard that makes it easier to grab files directly from your digital camera without copying them to your hard drive first.
You can also edit images using the WinZip explorer window and send selected files via email or FTP with a click.
WinZip 12 also supports additional file formats. Users can now extract 7z files as well as CD and DVD ISO and IMG disk images.