Searching for a convenient PST Compact Tool? If yes, then your search ends here. Use the MacSonik PST Compact Tool for Mac. The software is capable of compressing quickly Outlook PST files. It provides an option to preview mailbox items which allows users to show the emails along with the attachment of PST files. This tool gives you a Date Range Filter option that helps users compress selective emails between two dates. The free demo version of the Mac PST Compress Tool is available which allows users to compress and compact 50 PST files per folder in order to analyze the performance and functionality.