View protected PDFs in the Browser
There currently is not a way to view a IRM-protected PDF or protected PDF (.PPDF) in the browser. The protected PDF initially opens in the 'document viewer' app with a message saying "Hmm...looks like this file doesn't have a preview we can show you." If you click Open-Open in Browser you get a message saying "This PDF file is protected." Your only option is to download the PDF and open it in Foxit or Azure Information Protection Viewer (NOT Adobe Acrobat) which is not ideal.
Viewing protected PDF’s (new ISO format) is supported by the latest Edge Chromium
John Pell, Mayflower commented
Why is the official Microsoft response say "available in preview" when the thing which is in preview literally cannot open any IRM-protected anything since SPO IRM does not use the new PDFv2 ISO standard?
I tried to open a IRM protected pdf saved in a SPO document library with Edge Chromium Version 79.0.309.43 (Official build) beta (64-bit) but I got the following error: "Need permissions. Contact the owner of the file to give you permission". I'm the owner of SPO Site and after downloading of the file a can open it with an IRM compatible pdf viewer (Nuance Power PDF).
Thank you Nir, it's a great news to me!
David Regis commented
Can we use Acrobat Reader with Google Chrome to view IRM protected PDFs now?
IRM on SPO is simple and great solution to protect documents. But it is very complicated for pdf.
We expect some improvement for handling PDF files on SPO with IRM. I believe this is really good concept but we cannot use it in actual case due to the same issue.
My customer also urge for this feature. they are using SPO with IRM as document management platform. (Not just document file server.) This is so important to make it happen.
1) Is this dependant on how Azure Information Protection / Azure Rights Mngt have been installed and configured ?
2) For IRM-protected libraries and the use of AIP Viewer (for PDF docs), what other Library or Permissions Level settings need to be in place ? e.g. 'Opening Doc in browser'
IRM functionality has really great potential but without PDF support its prevent us from rolling out across our organization.