Personally, I've passed on Adobe. About a month ago, I was searching for something similar and found PDF Creator (
http://sourceforge.net/projects/pdfcreator/). Its open source/freeware, so you get what you pay for, but so far I've found it to be every bit as good as Adobe with less overhead and much cheaper.
I have it running on a machine that sends our trade files. The trading vendor's software requires a printer to be hooked up, but with PDF Creator set as the default printer all of our trade reports now get saved as a PDF file with no user intervention.