I believe DPart is one of the most important new features in PDF 2.0. DPart is page based metadata in a PDF file, stored in a hierarchy to group pages into “document parts”. From a prepress point of view, it can be the most important feature – together with page based output intents. In combination, they are powerful tools for automation, for page based automation. Page based automation allows for bringing even more intelligence into workflows, for performance improvements and possible integration of print and post print steps into automated workflows.