Open XML Paper Specification - Similarities With PDF and PostScript

Similarities With PDF and PostScript

Like Adobe Systems's PDF format, XPS is a fixed-layout document format designed to preserve document fidelity, providing device-independent document appearance. PDF is a database of objects, created from PostScript and also directly generated from many applications, whereas XPS is based on XML. Both formats are compressed, albeit using different methods. The filter pipeline architecture of XPS is also similar to the one used in printers supporting the PostScript page description language. PDF includes dynamic capabilities purposely not supported by the XPS format.

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