This document has been marked as final to indicate that editing is complete and that this is the final version of the document. ...

This document has been marked as final to indicate that editing is complete and that this is the final version of the document.

When a document is marked as final, the status property is set to "Final" and typing, editing commands, and proofing marks are turned off.
You can recognize that a document is marked as final when the Mark As Final icon displays in the status bar.