{
  "fileFormatID": 1740,
  "formatName": "Animated Portable Network Graphics",
  "version": null,
  "formatDescription": "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.\r\n\r\nAPNG is backwards-compatible with PNG; any PNG decoder should be able to ignore the APNG-specific chunks and display a single image.",
  "releaseDate": null,
  "binaryFileFormat": null,
  "formatNote": null,
  "lastUpdatedDate": "11 Jul 2016",
  "formatProvenance": null,
  "formatSourceDate": "11 Jul 2016",
  "formatDisclosure": null,
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": "APNG",
  "formatTypes": "Image (Raster)",
  "formatFamilies": null,
  "identifiers": [
    {
      "identifierText": "fmt/935",
      "identifierType": "PUID"
    },
    {
      "identifierText": "image/apng",
      "identifierType": "MIME"
    },
    {
      "identifierText": "fdd000649",
      "identifierType": "Library of Congress Format Description Identifier"
    },
    {
      "identifierText": "Q433224",
      "identifierType": "Wikidata QID Identifier"
    }
  ],
  "internalSignatures": [
    {
      "signatureID": 1279,
      "name": "APNG",
      "note": "Signature + IHDR and acTL chunks at BOF, IEND chunk at EOF\r\nSpecification: https://wiki.mozilla.org/APNG_Specification",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": 0,
          "byteSequence": "89504E470D0A1A0A0000000D49484452*6163544C",
          "endianness": null,
          "byteSequenceID": 1551
        },
        {
          "positionType": "Absolute from EOF",
          "offset": 0,
          "maxOffset": 0,
          "byteSequence": "0000000049454E44AE426082",
          "endianness": null,
          "byteSequenceID": 1552
        },
        {
          "positionType": "Variable",
          "offset": null,
          "maxOffset": null,
          "byteSequence": "6663544C00000000",
          "endianness": null,
          "byteSequenceID": 3837
        }
      ],
      "provenance": "v. 122- Signature updated with added variable signature. Submitted by Preservica."
    }
  ],
  "externalSignatures": [
    {
      "externalSignature": "png",
      "signatureType": "File extension"
    },
    {
      "externalSignature": "apng",
      "signatureType": "File extension"
    }
  ],
  "relationships": [
    {
      "relationshipType": "Has priority over",
      "relatedFormatID": 664,
      "relatedFormatName": "Portable Network Graphics",
      "relatedFormatPUID": "fmt/11"
    }
  ],
  "submittedBy": [
    1
  ]
}