Need the Pathfinder Roleplaying Game Reference Document, including supplemental material? Check out Andrew Stokes' contribution to the site here.

How can I get some of this content as a PDF?

One of the pieces of software that is very helpful when publishing content to the web is known as a PDF Printer Driver. Basically, it acts like a printer on your computer but instead of a document going to a physical printer, the contents are output to a PDF file and saved on your computer. This software is frequently available for free. One of the more popular ones is called CutePDF and is available here.