To convert MBOX to PDF using Regain MBOX to PST Converter, follow these steps:

Download and install Regain MBOX to PST Converter.
Launch the software and click on "Add File" to import MBOX files.
Browse and select the MBOX files you want to convert.
Choose the destination folder and select PDF as the output format.
Click on the "Convert" button to initiate the conversion process.
Once completed, locate the converted PDF files in the specified destination folder.

Regain MBOX to PST Converter simplifies the process, making it efficient for converting MBOX to PDF.