Protect Sharepoint 2013 contents

This is known as "Rights Information Management" and is not a trivial thing.

Also, please be aware of:
* In order for a client to "View" a file, their computer WILL need to receive a copy, it's how the http/html/browsers function (this can be mitigated a little by having a server side file viewer).

* In SharePoint 2013, PDF RIM is supported in some readers (see https://support.office.com/en-gb/article/SharePoint-Compatible-PDF-readers-that-support-Microsoft-Information-Rights-Management-services-dd197d58-5bf6-4d18-b9f8-d16db603fae2[^])

* RIM will do nothing to stop cameras, print screen or smartphones

Some links to get you started on the journey:

* Plan Information Rights Management in Office 2013 - https://technet.microsoft.com/en-us/library/cc179103.aspx[^]

* Set up Information Rights Management (IRM) in SharePoint admin center - https://support.office.com/en-us/article/Set-up-Information-Rights-Management-IRM-in-SharePoint-admin-center-239ce6eb-4e81-42db-bf86-a01362fed65c[^]

* Apply Information Rights Management to a list or library - https://support.office.com/en-us/article/Apply-Information-Rights-Management-to-a-list-or-library-3bdb5c4e-94fc-4741-b02f-4e7cc3c54aa1[^]

This is a large task, much larger than a single person and will touch many in the business. Its something which needs to be considered and planned.