I have a large MBOX file exported from my old email client (Thunderbird/Apple Mail). I need to convert or save multiple MBOX emails into PDF format for documentation and legal reference purposes. Right now, I am not sure which method is the safest and most efficient. Manual conversion is taking too long, and attachments are not getting saved properly. Can someone suggest the best and reliable way to save MBOX emails as PDF files? I am also looking for a solution that keeps email formatting, metadata, and attachments intact.