PK GIF Optimizer is a nice utility you can use to easily optimize gif graphics for your website. Many of the files will be significantly smaller with no noticeable difference in quality. PK GIF Optimizer is a snap to use and a great way to make your website a bit more user-friendly. Features: speed up web pages, save disk space and save bandwidth costs, friendly, easy-to-learn and easy-to-use interface, full drag drop support, image preview option, optimize 100s of GIFs at a time.