Saving Documents as PDF Files

Though not installed as a standard part of the Office 2007 suite, a plug-in provided by Microsoft allows various Office applications the ability to save files as both PDF and XPS file types. The plug-in can be downloaded from Microsoft site here:

2007 Microsoft Office Add-in: Microsoft Save as PDF or XPS

After installation, you can refer to a separate Microsoft page specifying exactly how to save a file in PDF format

Save as PDF format in an Office Program