OLM to PDF Converter for Mac is a professional solution that converts Mac OLM emails into PDF with all its mail attachments. This Outlook tool migrates multiple OLM emails in one click on macOS. It migrates all the Mac Outlook OLM data such as mailboxes, contacts, events, notes, attachments, to a PDF document. This macOS-based Outlook solution transfers all your Mac Outlook OLM items such as mailboxes, contacts, calendars, notes, attachments, etc. Also, it has a Mail filter & Task filter option to filter emails by date. This application supports all the latest macOS versions 10.15 Catalina, 10.14 Mojave, 10.13 High Sierra, 10.12 Sierra, OS X 10.11 El Capitan, 10.10 Yosemite, 10.9 Mavericks, and 10.8 Mountain Lion. The trial version of the tool converts 50 OLM emails into PDF format free of cost.
Source: http://www.macsonik.com/olm/pdf/