Adobe offers a wide range of products for creative professionals. Adobe PDF is their most common product, and has become a ubiquitous part of most systems. PDF documents have become the standard publishing format for textual documents.
The Prajna extensions include a software bridge to Adobe PDF. The PdfDocReader can read PDF documents and transform them into DocData objects. The PdfDocReader depends on the pdfbox.jar and fontbox.jar files from Apache.
More capabilities will be added in the future.