It is pronounced “GIF” which stands for Graphics Interchange Format
"JIF" is peanut butterso stop
What an acronym stands for has no effect on its pronunciation (for example: SCUBA, NASA, and NATO). Also, two words can be pronounced the same, even if their spelling and meaning differ. This is known as a homophone.
how is gif pronounced ‘jif’ if it stands for graphics interchange format
What an acronym expands to has no effect on its pronunciation. For example, that’s why NASA is pronounced as “nah-suh,” even though “aeronautics” is pronounced “eh-roh-naw-tiks.” If what the acronym NASA expands to affected its pronunciation, it could be argued that it should be pronounced “nay-suh.”