If you want to convert Outlook PST file to PDF format, then you can checkout Outlook to PDF Converter. This tool export entire Outlook data to Adobe PDF including emails, contacts, attachments, notes, etc. It does not require Outlook installtion for the conversion. With the help of this tool, you can perform complete export process in just 3 steps. 

Steps of Conversion

• Download and install the tool and Select the Outlook PST files
• Select desired location to save Output
• Click convert to start the process