If you only need a few emails from an OLM file, converting the entire mailbox may be unnecessary. You can export selected emails to PDF by choosing a method that supports individual message selection.

For a small number of emails, open the OLM mailbox in Outlook for Mac, select the required messages, and use the available print or save-to-PDF options. The exact steps may vary depending on your Outlook version, and you may need to process messages individually. If you have many emails to export, an OLM to PDF converter with selective email or folder options can make the process easier. Look for features such as email preview, date-range filtering, and folder selection so you can identify the messages you need before conversion. You can refer to the MacSonik guide to converting OLM to PDF to explore the available approaches. https://www.macsonik.com/blog/convert-olm-to-pdf/