Make your own PDFs with PDF Creator. Like the full blown Adobe Acrobat, what you’d typically need to use to create PDFs, PDF Creator installs itself as a printer, so it works with any application. When you want to create a PDF simply press print, and then choose PDF creator as your printer. Once you click print a pop up will guide you through the process of adding a title and author to your PDF and then ask you where to save it.
I find it especially useful as a print preview function for applications that don’t have it. Or in Firefox when I want to preview how a selected section of of a web page will print.