Follow the below steps to convert PST to PDF file format: Start the SysInfo PST to PDF Converter Tool. Browse the PST files from your system and click Next. Check the folders from the tree structure that you want to convert. Now, choose PDF format as the file format from the drop-down menu. You can also opt for the inbuilt features of the PST to PDF Conversion tool. Then select the destination path for the new PDF files. Finally, click on the Convert button to save the final report.