Our website provides a free download of JPEG Jackal 2.0.5 for Mac. Our antivirus analysis shows that this Mac download is virus free. The program is included in Design & Photo Tools. This Mac app was originally designed by Pavel Kosykh.
From the developer:
Meet JPEG Jackal ! JPEG Jackal is simple, powerful and quick tool for home and professional usage, that can help you to optimize pictures size and save disk space or internet traffic. It uses special compression algorithm to give you best jpeg quality.
You may want to check out more software for Mac, such as JPEG to PDF, 4Videosoft PDF to JPEG Converter or JPEG 2000, which might be related to JPEG Jackal.