RTF to PDF

Dear Friends

I'm looking for a pure free java solution to convert RTF files to PDF files. Actually I'm using a pure java solution but the result is poor. I use Majix to convert RTF file to XML. Then using a XSL i make a XSLT tranformation and generate a .FO file. Using FOP from Apache Project I can convert this FO to PDF using sdocbook.xml from SourceForge. But the PDF file generated loses fidelity. 

If anyone can help, please send me a mail.

Thanks

Walter