citation needed, Nathan ;-)
Not that it matters anyway, Graphics, hard g
The words in an acronym don't necessarily dictate how the acronym itself is pronounced.
CompuServe used to distribute a graphics display program called CompuShow. In the documentation for version 8.33 in the FAQ section, it states:
The GIF (Graphics Interchange Format), pronounced "JIF", was designed by CompuServe and the official specification released in June of 1987.
There, straight from the inventors of the format.
Convinced yet?
http://www.olsenhome.com/gif/How do you pronounce .jpg and .png?