How to define GIF File?

A vivified GIF (Graphics Interchange Format) document is a realistic picture on a Web page that moves - for instance, a spinning symbol or a pennant with a hand that waves or letters that mysteriously get bigger. Specifically, an enlivened GIF is a document in the Graphics Interchange Format indicated as GIF89a that contains inside the single record an arrangement of pictures that are introduced in a predetermined request. An energized GIF can circle unendingly (and it seems like your report never completes the process of arriving) or it can display one or a couple groupings and after that stop the activity. Enlivened GIF images are regularly utilized as a part of Web promotion standards. 

Java, Flash, and different devices can be utilized to accomplish an indistinguishable impacts from an energized GIF. Be that as it may, enlivened GIFs are for the most part less demanding to make than equivalent pictures with Java or Flash and generally littler in size and therefore speedier to show.