xmlto converts an XML file (DocBook or XSL-FO) into a specified format (PS, PDF, HTML, man, ASCII, XSL-FO, etc.) by applying an appropriate XSL-T stylesheet and then performing whatever post-processing is necessary.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.