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Format

Windows Bitmap

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Summary

Name
Windows Bitmap
Version
4.0
Identifiers
  • Apple Uniform Type Identifier: com.microsoft.bmp
  • PUID: fmt/118
  • MIME: image/bmp
Format type
Image (Raster)
Description
This is an outline record only, and requires further details, research or authentication to provide information that will enable users to further understand the format and to assess digital preservation risks associated with it if appropriate. If you are able to help by supplying any additional information concerning this entry, please return to the main PRONOM page and select ‘Add an Entry’.
Format encoding
Binary
File extensions
bmp, dib
Submitted by
Digital Preservation Department / The National Archives

Relationships

Is previous version of
Is subsequent version of

Internal signatures

Windows Bitmap 4.0

Description
BITMAPFILEHEADER + BITMAPV4HEADER structures

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
None
Byte Sequence
424D{4}00000000{4}6C000000{8}0100(01|04|08|10|18|20)00(00|01|02|03)000000
Endianness
Little-endian

Changelog

  • V110

    Release date
    14 March 2023

    • Added signature

      Windows Bitmap 4.0: Signature researched and samples provided by GoldFynch eDiscovery.

    • Updated

      Windows Bitmap 4.0: Last pair of zeros removed from signature. Submitted by GoldFynch eDiscovery.