It would be best practice to mark your document as final before you send it off to others for professional evaluation. This means that it is enabled and the document is “finalized.” It won’t allow any changes to the document. In this sub-menu, you’ll see an icon next to ‘Mark as Final’ highlighted in orange. Click on the Office button (the circle with the office logo on it in the top-left corner) and go down to the Prepare sub-menu.