LEADTOOLS ePrint 6 Professional
XML Paper Specification (XPS) Format

Microsoft Open XML Paper Specification (XPS) Format

Developed by Microsoft, the XML Paper Specification (XPS) format is an electronic paper designed to be read by hardware, software, and people. It is a platform-independent format that offers improved printing, spooling and rendering. 

Note:

The XPS format requires .NET Framework 4.0.