Thanks to everyone who has tried to help, apparently the example I used as a template on the web was a little broken and didn't close the output streams correctly, so with your help I now know what is wrong and am putting it right.
Thanks again Kindest regards Theresa Forster Senior Software Developer From: Theresa Jayne Forster [mailto:ther...@inbrand.co.uk] Sent: 13 February 2012 16:07 To: fop-users@xmlgraphics.apache.org Subject: Invalid PDF files from FOP 1.0 Well I have sort of tested the system now, I used the default fonts.fo file and transformed it to PDF. This simple PDF is not compatible with adobe reader. This is now getting silly. My code + test files + output files are available at http://athos.ardentservers.com/fopengine-error.zip If someone could point me to the reason why I am getting invalid PDFs out I would appreciate it. Kindest regards Theresa Forster Senior Software Developer