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Format

Jeffs Image Format

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Summary

Name
Jeffs Image Format
Identifiers
PUID: fmt/994
Format type
Image (Raster)
Description
Jeff's Image Format (JIF) is a raster image file format that was designed to be a patent-free alternative to GIF. It is nearly identical to GIF, except that it uses zlib compression instead of LZW.
File extensions
jif
Submitted by
Digital Preservation Department / The National Archives

Internal signatures

Jeffs Image Format

Description
JIF99a

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
4A4946393961
Endianness
None

Changelog

  • V89

    Release date
    8 March 2017

    • Added format

      Jeff's Image File: Full entry added.

    • Added signature

      Jeff's Image File: Signature developed through PRONOM Research.