The easiest and best solution to convert OLM files to PDF format is the MacProTools OLM to PDF Converter tool for Mac. It can convert OLM files into PDF format in Bulk and it also gives an option to save the converted OLM files in the same folder. This tool helps to Remove similar or duplicate email items from the selected OLM files. Using this tool you can backup and migrate your Mac OLM files without attachments. It excludes email attachments from the conversion/migration procedure without data loss.