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PNG was developed as an improved, non-patented replacement for Graphics Interchange Format (GIF)—unofficially, the initials PNG stood for the recursive acronym "PNG's not GIF". [ 6 ] PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without an alpha channel for transparency), and ...
Seal_of_Los_Altos,_California.png (400 × 400 pixels, file size: 253 KB, MIME type: image/png) This is a file from the Wikimedia Commons . Information from its description page there is shown below.