I'm tagging onto this thread because I have been intermittently experienced error 30's when printing SO invoices to PDF on version 2014 and it's frustrating that these ""random"" errors occur because of course it doesn't happen on every invoice. The error occurred with 2 different invoice forms, and I FINALLY figured out the cause of my error 30's: certain subreports. It was all very circumstantial - for instance, on each of the forms only one of the subreports was the culprit. One one form I was able to eliminate the subreport and make a direct link to the needed table, and the other one I had to take a different approach on what file to make the subreport. They are on the ""improved"" amunyi driver but I don't know what the future holds for that crappy driver. Hopefully no more error 30's - but ya never know.