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

http://r.office.microsoft.com/r/rlidMSAddinPDFXPS

http://office.microsoft.com/en-us/help/print-share-and-protect-files-in-the-pdf-and-xps-file-formats-HA010167527.aspx?CTT=5&origin=HA010067494

Install this plugin so that you can export / save PowerPoint slides to PDF.