There are many ways to create PDF files. We recommend PDFCreator. This free software works through a printer driver. It can combine output into one pdf file and also produces other output formats such as eps, tiff and jpg. Other choices include the proprietary Adobe Acrobat, Corel WordPerfect and the free GhostScript and GSView. You can save files to PDF directly from OpenOffice. This free office suite can also open and save Word files and runs on many operating systems. Macintosh users can create PDF through Mac OS X or may want to consider PrintToPdf.