ANSI X3.122-1986 American National Standard for Information Systems - Computer Graphics - Metafile for the Storage and Transfer of Picture Description Information American National Standards Institute, Inc. 1430 Broadway, New York, New York 10018 CGM incorporates multiple elements to provide functionalities to accommodate graphical information and geometrical data. Another fact remains that other graphic formats e.g. PDF which are owned by their creators can be free for the time being, but a long run commitment may be expensive choice. As multitudes of CGM vendors are offering services, you can switch services according to your requirements anytime.

In addition, it is important to use a file format which loads quickly, can provide the ability to overlay a graphic with hotspots – even circular hotspots, and is written in a standard that will not change over time. CGM version 4 provides many important data formatting features: high-quality graphics, scans and converted CAD data, interactivity, and quick preparation. CGM version 4 creates a way to store non-graphic data together with the illustration in one file. A CGM profile is required to store hotspot data