I have installed Bullzip PDF Printer (free edition) on my PC, which runs Windows 7 SP1 64 bit. This application is free (up to 10 users) and it is quite complete. The dialog window, which is opened during the PDF conversion, is plenty of features. I can also select the advanced dialog window, which is more complete and equipped with a helping panel, which explains each single option.
Some drawbacks of this application:
1. It does not work with the original Ghosthscript software, but only with the Ghostscript Lite version (downloadable from the Bullzip website).
2. The free version does not permit to merge PDF files (for this task, I recommend PDF TK Builder).