1740 Animated Portable Network Graphics APNG Image (Raster) APNG is an extension of the PNG format, adding support for animated images. It is intended to be a replacement for simple animated images that have traditionally used the GIF format, while adding support for 24-bit images and 8-bit transparency. APNG is intended as a simpler alternative to MNG. APNG is backwards-compatible with PNG; any PNG decoder should be able to ignore the APNG-specific chunks and display a single image. 1 Digital Preservation Department / The National Archives 11 Jul 2016 11 Jul 2016 fmt/935 PUID image/apng MIME fdd000649 Library of Congress Format Description Identifier Q433224 Wikidata QID Identifier png File extension apng File extension 1279 APNG Signature + IHDR and acTL chunks at BOF, IEND chunk at EOF Specification: https://wiki.mozilla.org/APNG_Specification 1 Absolute from BOF 0 0 89504E470D0A1A0A0000000D49484452*6163544C 1 Absolute from EOF 0 0 0000000049454E44AE426082 1 Variable 6663544C00000000 Has priority over 664 Portable Network Graphics