Although this isn’t new, it may aid some have not moved to Mac OS X.
PrintToPDF is a shareware Macintosh printer driver that creates PDF files (readable by Adobe Acrobatï¿½ Reader or GhostScript on any platform). You do not need to have the full Acrobat package (as opposed to the Reader) installed for PrintToPDF to work. You can create PDF bookmarks to your section and subsection headings, and URLs will become hot links. PrintToPDF is not as powerful as Acrobat, but it creates simple PDFs for a much lower price ($20).