As a library administrator, you can prevent users from renaming documents after they've been created. You can define this setting at the document class level in Document Management libraries only.
2. Select Document classes.
3. Press the name of the document class you want to configure or select Configure document class in the More actions menu. The document class configuration page opens.
4. Select the Security tab.
5. Select the checkbox Only administrators can rename documents.
6. Press Save.
Note: When documents in this document class have been given a title and created, only library administrators and super administrators can change the title.
Tip: The title can be set as read-only if an automatic naming convention is enforced on the title of the document by custom script.