CGM

File Format
Name	CGM
Ontology	Electronic File Formats Graphics CGM
Extension(s)	.cgm
MIME Type(s)	image/cgm
LoCFDD	fdd000521
PRONOM	fmt/306, others
Wikidata ID	Q1122267
Released	1986

CGM (Computer Graphics Metafile) is a format for storing graphics in multiple manners suited for different devices, including vector, raster, and character-based graphics, but it is primarily used for vector graphics. It is standardized as ISO/IEC 8632, and is used in some specialized fields such as engineering and aviation.

Identifiers

Version		PRONOM
1	ASCII	x-fmt/142
	binary	fmt/303
2	binary	fmt/304
3	ASCII	fmt/301
	binary	fmt/305
4	ASCII	fmt/302
	binary	fmt/306

Specs

• ISO/IEC 8632-1:1999
• ISO/IEC 8632-1:1999/Cor 2:2007
• ISO/IEC 8632-3:1999
• ISO/IEC 8632-4:1999

Software

• UniConvertor (archived)
• UniConvertor (current)
• LibreOffice

Sample files

• http://www.fileformat.info/format/cgm/sample/index.htm
• http://cd.textfiles.com/libris/GRAPHICS/CLIP_ART/ → 2738A.ZIP, 2738B.ZIP
• dexvert samples — image/cgm
• CGM Samples

Links

• Wikipedia article
• CGM File Format Summary, from the Encyclopedia of Graphics File Formats
• Some discussion about what CGM is