Format
Windows Metafile Image
Summary
- Name
- Windows Metafile Image
- Identifiers
-
- MIME: image/wmf
- PUID: x-fmt/119
- Format type
- Image (Vector)
- Description
- Windows Metafile is an image file format originally designed for Microsoft Windows in 1990. Windows Metafiles may contain both vector graphics and bitmap components.
- File extensions
-
wmf - Source
- Digital Preservation Department / The National Archives
- Developed by
- Microsoft Corporation
- Supported by
- Microsoft Corporation
Internal signatures
Windows Metafile Image with Placeable File Header
- Note
- Many applications that create metafiles prepend a 22-byte 'Placeable File Header' to the metafile: https://msdn.microsoft.com/en-us/library/windows/desktop/ms534075(v=vs.85).aspx Magic number 0x9AC6CDD7, 2-byte handle, always 0, skip 16 bytes, File type (1 or 2), header size in words, always 9.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
D7CDC69A0000{16}01000900- Endianness
- None
Windows Metafile Image without Placeable File Header
- Note
- File type (1 or 2), header size in words, always 9. Version either 01 or 03
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
0100090000(01|03)- Endianness
- None
Changelog
-
Updated in V86
- Release date
- 27 July 2016
Windows Metafile Image: Added MIME type and description.
-
Updated in V84
- Release date
- 21 January 2016
Windows Metafile Image: Created second identification signature and highlighted that existing signature includes an optional 'Placeable File Header'.
-
Added in V58
- Release date
- 21 March 2012
Windows Metafile Image: Format name changed for greater accuracy and consistency.
Windows Metafile Image: Signature submitted by Georgia Tech Research Institute, USA.