Microsoft Purview compliance portal: Advanced label-based protection for non-Office/PDF files with the Microsoft Purview Information Protection Client

This feature enhances secure collaboration in your organization by using the Information Protection Filer Labeler and Viewer to apply protection from Endpoint DLP. Protected non-Office/PDF files preserve their native file format on-device and can be opened in third party applications. On egress from the machine, these files are protected as PFILEs.