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How to Convert RPMSG to PDF Format?

  author
Jamie Kaler   Contribution
Rollins Duke
Rollins Duke  Approved By
Published On November 13th, 2025 • 5 min read

Emails protected with .rpmsg (Rights-protected Message) files are commonly used in Microsoft Outlook and Exchange environments to secure vital information. The type of email messages restricts certain actions such as forwarding, printing or copying, to ensure the data privacy and confidentiality. However, this protection will also make it difficult for users to view or share the content outside Outlook. To get a hold on the information or to share it as a readable, users seek a solution to convert RPMSG to PDF format. Converting the files allows you to keep an accessible copy of the message while maintaining the formatting and the content integrity. However, in this article, we will give the best solutions that would keep data integrity intact.

Why is converting to PDF the best option? Since RPMSG files are encrypted and permission-protected, accessing them outside of Microsoft Outlook is challenging. Therefore, the most reliable option we have is the PDF file format. As they can be read on other devices, stored for documentation purposes, etc. The PDF not only ensure the universal accessibility but also helps in retaining the original layout, metadata and attachments of the emails. Altogether, it makes a secure and convenient option for archiving or sharing important email data.

Overview RPMSG File

The RPMSG file is a special type of message that is encrypted and created by MS Outlook’s Information Rights Management (IRM). It is to restrict the recipient’s ability to forward, copy or print the message content, which can be done by the sender.

Typically, an RPMSG file is an encrypted email attachment that contains a protected message body and the metadata. When a recipient gets the email message, they can open it in Outlook, which automatically decrypts and displays it – provided the user has the right permission. However, if you try to access it outside Outlook, the content appears unreadable and encrypted. That’s why users want to convert RPMSG files to PDF format.

Why Only Convert RPMSG to PDF Format?

Here are the reasons why users prefer to convert RPMSG files into a PDF document.

  • Universal Compatibility: A PDF file can be opened on any OS, such as Windows, macOS, iOS or Android, without the need for Microsoft Outlook.
  • Offline Access: Above all the reasons, getting off hand on an email message offline is a solid reason. Without the need for an internet connection, we can view MSG files with ease.
  • Maintain Layout & Meta Data: Even after converting, the original message formatting will be preserved in the PDF files, such as hyperlinks, sender/receiver details, and attachments. However, we need to identify the approach that offers the best results.
  • Simple​‍​‌‍​‍‌ Sharing: One can easily share or print a PDF file without any kind of concern for permission or encryption ​‍​‌‍​‍‌issues.

What are the Challenges to convert RPMSG to PDF format?

Manually converting RPMSG files to PDG is not possible. Since the message files are encrypted, you can’t just open and print them like any other files to PDF. Outlook’s export or print features won’t work if there is a viewing restriction; otherwise, we can manually convert MSG files to PDF one by one.

However, to handle this challenge, you can skip to the advanced method that will ease the process.

Check out the other article: How to open RPMSG file in Gmail?

Manual Method to Convert RPMSG to PDF Format

Note: The manual method only works if you have the necessary permission to open and print the RPMSG file. It is only possible if the sender has not restricted any of those actions.

Follow the steps:

  • Open the RPMSG email in Outlook.
  • Go to File > Print.
  • Select Microsoft Print to PDF.
  • Choose the folder and click Save.

As we said before, it only works for files that do not have any open or print restrictions. Otherwise, you can go with the automated method that allows a quick and direct way to convert RPMSG to PDF.

Using the Professional Tool to RPMSG to PDF Converter

Usually,​‍​‌‍​‍‌ people who have several RPMSG files and are not able to open the email directly should turn to a professional tool – MSG Converter. The tool is capable of converting and saving the file in PDF format without changing the original content. It allows batch conversion and keeps the email attributes like the sender details, attachments and formatting. It guarantees productivity, data protection and correctness, thus it can be used in business and legal ​‍​‌‍​‍‌sectors.

Change RPMSG to PDF Format in 4 Steps

Download and complete the installation of the software. Now, follow the steps to convert RPMSG to PDF:

  1. Start the software on the system.start the tool
  2. Add RPMSG Files to the interface. Press the Next button.add msg file
  3. Select the PDF file format from the options.choose pdf
  4. Set a destination location and press the Next button.choose a location
  5. Press the Export button to start the conversation.press export button to convert rpmsg to pdf

Conclusion

If you convert RPMSG to PDF, it ensures that the important Outlook messages are accessible, printable and easy to share without the encryption restrictions. Manual conversion is not possible depending on the type of restriction the message has; therefore, we have come up with the tool. With the simple and intuitive interface. The tool securely transforms the RPMSG message into the standard PDF format while preserving the details and the original email message.