by David Hakala

You may have seen images that move on Web sites or in emails.

They’re called “animated GIF” images. You can make them too with a bit of work. Actually, there are a few tools that eliminate much of the work.

An animated GIF image actually consists of several images contained in a single file. Each image depicts is subject in different position. The images are displayed in sequence automatically, creating the illusion of motion. You probably did something similar as a child, drawing pictures of a running figure on successive pages of a notepad and then riffling through the pages rapidly with your thumb. Animated GIF images are the same thing done digitally.
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