I think you need to check out this one i.e. ZOOK EML to PDF Converter. It is an expert's recommendation to convert multiple EML files into PDF format. Just few steps away to convert EML to PDF Format.
3 Steps to Convert EML to PDF Format: -
1. Download and Install Tool.
2. Select EML Files or EML Folders
3. Now, choose Saving Location.
4. Click on Convert Button.
That's it!! Now, enjoy. All your EML files will be converted into PDF format format without any data loss. It also consists of various advance features which makes all the task so simple and safe.