The reader is free. To make PDFs you have to buy the software (and it's not too cheap I don't think). I have a copy from work, and I work at home, so it's on my PC. Very handy. : )
You make a PDF by printing the document to file (check off the Print to File box in the Print Dialog in just about any program). That traps the printer information in a file.
Then you open up that file in Acrobat Distiller (part of the Acrobat software). Distiller will turn the printer information into a PDF file.
It's quite advanced stuff actually, and PDFs are pretty standard in the Desktop Publishing industry these days. Many publications are sent to the printers as PDFs. Adobe was really onto something when they developed it. Of course, they were onto something when they developed the postscript language with Apple in the 1980s too, without which there would be no PDFs, but I digress.
I will see about another revision of the reference chart once I get more information and drag myself away from a game long enough! LOL!!
--LW