You can mark a document as read-only and still allow changes to selected parts.
You can make these unrestricted parts available for anyone who opens the document, or you can grant permission to specific individuals so that only they can change the unrestricted parts of the document.
Tip: To select more than one part of the document at the same time, select the part that you want, then press CTRL and select more parts while you hold down the CTRL key.
Important: If you intend to protect the document with user authentication rather than password protection, be sure to type e-mail addresses for user names.
Note: If you select more than one individual, those individuals are added as an item to the Groups box, so that you can quickly select them again.
Note: Use this option if you want other people to be able to work on the document at the same time. Note: Encrypting the document prevents others from working on the document at the same time.To remove all protection from a document, you might need to know the password that was applied to the document. Or you might have to be listed as an authenticated owner for the document.
If you are an authenticated owner of the document, or if you know the password for removing document protection, do the following:
When you open a protected document, Word restricts what you can change based on whether the document owner granted you permission to make changes to a specific part of the document.
The Restrict Editing task pane displays buttons for moving to the regions of the document that you have permission to change.
If you do not have permission to edit any parts of the document, Word restricts editing and displays the message, "Word has finished searching the document" when you click the buttons in the Restrict Editing task pane.
If you close the Restrict Editing task pane and then try to make changes where you do not have permission, Word displays the following message in the status bar:
This modification is not allowed because the selection is locked.
To return to the task pane and find a region where you have permission to edit, do the following: