Free Virtual Printer Converts Any Document to Adobe PDF Format

PDFCreator

Portable Document Format (PDF) is the de facto standard for the secure and reliable distribution and exchange of electronic documents and forms around the world.

PDFCreator, is an open source program (i.e. FREE) from www.SourceForge.net that works by setting up a 'Virtual Printer' on your computer. To create a PDF you just select the PDF 'Virtual Printer' as you would any other printer and print to it. The "Virtual Printer" will ask you for a file name, click Save, and your done. This means you can create PDFs from Word, Excel or indeed any program that allows you to print.

I've been using this software for years now and it works great.

You can download the installation here.