To convert .msg to PDF on Mac OS in batch mode at once install Mac MSG to PDF Converter. This medium of file conversion is independent in nature, hence there is no requirement to launch any other application like Outlook to convert .msg to PDF on Mac OS. All the attachments of the file be remain the same, hence there is data loss concern is here. Users must opt for the demo version, through which users may convert .msg to PDF on Mac OS free of cost however, it is valid up-to 25 items.