A quick warning:
On the SourceForge download page for PDFCreator, I just saw a Google Ad that looked like the button to download PDFCreator (only larger).
The ad lead to http://cn.pdfconvertersoft.com/, which describes PDFCreator, and includes a screenshot of it. Clicking anywhere on the page triggered a download of a file called pdf_converter.exe, which contains malware according to some virus scanners: VirusTotal
About a year ago, I found a similar fake download button in a Google Ad on the same page.