{
  "fileFormatID": 620,
  "formatName": "Graphics Interchange Format",
  "version": "89a",
  "formatDescription": "The Graphics Interchange Format (GIF) is a raster image format developed by Compuserve, primarily for use on the internet. A GIF file begins with a Header section and a Logical Screen Descriptor section. This is followed by one or more Image sections, and the file is terminated by a Trailer. GIF supports bit depths between 1 and 8 bits (i.e. up to 256 colours) and supports features such as interlacing and transparency. Images are always stored using lossless LZW compression. GIF 89a introduced a number of new features, including a series of optional Control Extensions, which can be used to control the rendering of images within a file.",
  "releaseDate": "31 Jul 1990",
  "binaryFileFormat": "Binary",
  "formatNote": null,
  "lastUpdatedDate": "02 Aug 2005",
  "formatProvenance": null,
  "formatSourceDate": "11 Mar 2005",
  "formatDisclosure": "Full",
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": "GIF (1989a)",
  "formatTypes": "Image (Raster)",
  "formatFamilies": null,
  "identifiers": [
    {
      "identifierText": "com.compuserve.gif",
      "identifierType": "Apple Uniform Type Identifier"
    },
    {
      "identifierText": "fmt/4",
      "identifierType": "PUID"
    },
    {
      "identifierText": "image/gif",
      "identifierType": "MIME"
    }
  ],
  "internalSignatures": [
    {
      "signatureID": 17,
      "name": "GIF 1989a",
      "note": "header & trailer",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": 0,
          "byteSequence": "474946383961",
          "endianness": "Little-endian",
          "byteSequenceID": 181
        },
        {
          "positionType": "Absolute from EOF",
          "offset": 0,
          "maxOffset": 4,
          "byteSequence": "3B",
          "endianness": "Little-endian",
          "byteSequenceID": 182
        }
      ]
    }
  ],
  "externalSignatures": [
    {
      "externalSignature": "gif",
      "signatureType": "File extension"
    }
  ],
  "relationships": [
    {
      "relationshipType": "Is subsequent version of",
      "relatedFormatID": 619,
      "relatedFormatName": "Graphics Interchange Format",
      "relatedFormatPUID": "fmt/3"
    }
  ],
  "developedBy": [
    108
  ],
  "submittedBy": [
    1
  ]
}