By selecting the Convert to PDF feature, RMail will convert any Microsoft Office attachments to PDF format with one click en-route.  

1. Compose an email and attach a document.
2. Click on the Send Registered button to open the features panel.
3. On the Attachments section select which documents you would like to convert to PDF.

4. Click on the Send button

The attachment in the “Sent Items” folder remains in the native format.

The recipient will receive the attachment as a PDF.

For added security, the Convert to PDF feature may be combined with the Encryption feature. To learn more refer to this article about Encrypting a message