While OS X has a built-in PDF conversion utility, this can’t be said for Windows XP or 9x. In the past, when I have wanted to convert a document to PDF format, I have had pay for Adobe Acrobat. However, I have now noticed a relatively new and FREE PDF conversion utility for the PC called PrimoPDF. Download the free program, and it installs itself as a virtual print driver. Now you can convert just about any printable document to a PDF by pointing your print jobs to PrimoPDF instead of your printing device.
Download PrimoPDF here.