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Service phase: Beta

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Format

X-Windows Bitmap Image

Summary

Name
X-Windows Bitmap Image
Version
X11
Identifiers
  • MIME: image/x-xbitmap
  • PUID: x-fmt/207
Format type
Image (Raster)
Description
X-Windows Bitmap is a binary image format, for storing cursor and icon bitmaps used in the X graphical user interface
File extensions
xbm
Source
Digital Preservation Department / The National Archives

Internal signatures

X-Windows Bitmap Image X11

Note
Starts with a C declaration: "#define <name>_width <integer>#define <name>_height <integer> static [unsigned] char <name>_bits[] = {" where <name> is filename without extension.

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
None
Byte Sequence
23646566696E6520{1-30}5F776964746820{1-16}23646566696E6520{1-30}5F68656967687420{1-300}73746174696320(63686172|756E7369676E65642063686172)20*5F626974735B5D203D207B
Endianness
None

Changelog

  • Updated in V78

    Release date
    23 September 2014

    X-Windows Bitmap Image: Description added.

  • Added in V58

    Release date
    21 March 2012

    X-Windows Bitmap Image X11: Format name changed for greater accuracy and consistency.

    X-Windows Bitmap Image X11: Signature submitted by Georgia Tech Research Institute, USA.