When trying to open a document in Firmex VDR for iOS you receive the message:
You are unable to view this document because it is protected.
Documents with document protection options active (i.e. Lock To Computer, Disable Print, with the exception of Enable Watermark) cannot be viewed or saved to the vault via Firmex VDR for iOS.
You may view the document via the Firmex website, not via the iOS app.