How to Open a PUB File Without Publisher. If you don't have Publisher, Microsoft's desktop publishing program, and a business associate sends you a Microsoft Publisher file, you have several ...

Hit the Publish button. How do I convert a PUB file to PDF using Publisher? Open the Publisher file you would like to convert into a PDF. Then, choose the File tab from the Ribbon menu.

Free Web service Zamzar can turn Publisher files into Word documents, PDFs, HTML pages, and loads of other formats.