Looking for a solution to know how to open the Outlook mail to PDF? If yes, then use PST to PDF Converter software that helps you to know how to open the Outlook mail to PDF file format within a few simple steps. It has a very simple GUI, anyone can easily handle and works with this software without any technical skills. There is no file size limitations, one can convert a large size of PST files to PDF file format without any data loss. MS Outlook installation is not required for the conversion process. It supports all the latest and below versions of MS Outlook and Windows OS including Windows 11.