Precision Graphics Markup Language
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Precision Graphics Markup Language (PGML) is an XML-based language for representing vector graphics. It was a W3C submission by Adobe Systems, IBM, Netscape, and Sun Microsystems, that was not adopted as a recommendation.
PGML and VML, another XML-based vector graphics language W3C submission supported by Autodesk, HP, Macromedia, Microsoft, and Visio, were later joined and improved upon to create SVG.