SealPath offers document access tracking, making it possible to monitor who has opened it and when. In addition, it quickly shows what people outside the company have access to the document and monitors their accesses. Both the administrator and the end user can view the tracking information for the documents they have protected. It also shows warnings for the protected documents, such as denied access, unprotection, users who have been added by third parties, etc.
You can see how to access document tracking from the end-user's perspective here.
You can see how to access document tracking from the admin's perspective here.