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Graphics Interchange Format
MIME type: image/gif
GIF is one of the oldest image formats still in wide use, primarily for short animations and simple graphics. It supports up to 256 colors and frame-based animation.
GIF uses LZW (Lempel-Ziv-Welch) lossless compression with a maximum color palette of 256 colors per frame. Animation is achieved through multiple image frames with individual delay timings. Each frame can have its own local color table or share the global color table. The format supports a 1-bit transparency channel (fully transparent or fully opaque).
Both 'gif' (hard G) and 'jif' (soft G) are widely used. The creator Steve Wilhite intended the soft G pronunciation, but the hard G has become more common in everyday use.