ProJPEG is an Adobe Photoshop file format plugin that has been the ultimate JPEG tool for Web graphics professionals for years. Provides advanced tools, precise controls, and instant feedback so you can create the best, smallest JPEG's for the Web. Gives you side by side before and after previews so you can see exactly how your image will look and tells you the exact size the saved file will be with your currently selected options. Preview image and file size, but cannot save.
||Free to try
Mac OS Classic
||Mac OS 9.x/X, Adobe PhotoShop 3