Use GIF Ninja, GIMP, Photoshop, or another image manipulation program to split an animated GIF’s frames into separate images. Note that only animated gifs can be split because this is the only GIF format that can store multiple, separate images. The desktop programs that split these images can do so because of their layering tools. Layers are virtual transparencies that you can stack to form a unified image. Imaging programs also use them to hold the frames of animated GIFs. Writer Bio

How to Split a GIF  17 Steps  - 53