Recently I had to ship someone a Word Document that I would rather they did not mess around with.
And certainly not plagiarise or copy.
What steps can you take?
Prevent Document Copy and Editing
Enable Developer tab in Office Ribbon
Protect Document on Ribbon, Restrict Formatting and Editing
Start enforcement, which means setting a password
This is some Visual Basic code to intercept the attempt to print. Not foolproof of course.
Press Alt+F11 and enter the following code in the ThisDocument section.
And finally, don't forget to add a few hidden Document Properties to round things off.