extendedPDF is an OpenOffice.org macro that converts an OpenOffice document into a PDF document. The output includes the original document's headings as PDF bookmarks, and includes the original hyperlinks as PDF hyperlinks. Document meta-information (such as title, author, and keywords) is also added.
SILVERCODERS OCR Server is a server-based optical character recognition (OCR) and PDF conversion solution for enterprises. It is able to perform conversion of printed documents to editable and searchable formats like plain text, RTF, PDF, and HTML, providing highly accurate recognition in 189 languages. It is available as a Linux application or a stand-alone machine, with a fully documented API, very good performance, and flexible licensing rules. It has been designed specifically for the purpose of cooperation with document management systems such as SILVERCODERS DocStorage.