If you have been using Photoshop for the web for any length of time, you have probably run into a situation where you find yourself doing the same operation over and over again.
This tutorial is aimed at helping you to understand how to save transparent GIFs / PNGs using Photoshop (or ImageReady). Although saving transparent images is not terribly complicated, there are a few misconceptions and inconsistencies that can make it confusing. This tutorial also provides an explanation for many of the tools and optimization settings associated with saving transparent images (especially geared toward saving images for the Web).