To Convert PST Files to PDF along with the attachments you should consider The Sysinfo PST to PDF Converter. The Tool allows its users to convert multiple PST files with attachments into PDF format. The tool is supported in all the versions of Outlook. Other features of the tool are: 

• Convert PST to PDF with attachments files.
• Allows users to convert all mailbox items of Outlook into PDF format.
• Filter PST emails based on To, From, Subject, Bcc, and Body to remove duplicate items.
• It offers a preview of the folders, subfolders, files, and other details.