Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.The Open XML Paper Specification (also referred to as OpenXPS), is a specification for a page description language and a fixed-document format originally developed by Microsoft as XML Paper Specification (XPS) that was later standardized by Ecma International as international standard ECMA-388. It is an XML-based (more precisely XAML-based) specification, based on a new print path and a color-managed vector-based document format which supports device independence and resolution independence. OpenXPS was standardized as an open standard document format on June 16, 2009.