According to VirusTotal, 3 anti virus scanners have detected a trojan in PDFCreator 1.7.1. It was downloaded off pdfforge.org https://www.virustotal.com/en/file/1024b5fa915768f1b8d83eea9be01dcd664401b8c4732223733f2bc2689c78d5/analysis/
Hi,
http://www.pdfforge.org/content/my-anti-virus-program-says-pdfcreator-contains-virus-dont-you-check-your-files
(you can see, the number has gone down to 2 and those should also dissappear once their virus definitions where updated)
regards,
Robin