CGM

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.

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
 * https://telparia.com/fileFormatSamples/image/cgm/
 * CGM Samples

Links

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