Modular content framework and document format methods and systems are described. The described framework and format define a set of building blocks for composing, packaging, distributing, and rendering document-centered content. These building blocks define a platform-independent framework for document...http://www.google.ca/patents/US20050251740?utm_source=gb-gplus-sharePatent US20050251740 - Methods and systems for building packages that contain pre-paginated documents
