Is there any safe way to convert MSG files to PDF without Outlook installed on Windows?

I have some MSG files saved on my Windows PC, but Microsoft Outlook is not installed. I still need to convert these emails into PDF format without damaging the message content, headers, or attachments. Is there any safe method to convert MSG files to PDF without using Outlook?

Yes, you can convert MSG files to PDF on Windows without installing Outlook. Just don't change the extension on .msg files to .pdf; it doesn't make a proper PDF and can make the email unreadable.
First copy your MSG folder so the original emails are safe. After that, use a standalone Windows tool that can read MSG files directly. WholeClear MSG to PDF Converter can help here because it does not need Outlook or Adobe Acrobat. It also keeps the email body, formatting, properties and attachments during conversion.

Before converting the whole folder, run a small check with 5 to 10 MSG files. Open the PDF output and match the sender, date, subject, message text and attachments with the original emails.
The demo build is enough for checking the result first; then you can move ahead with the complete folder.