This brings inconvenience to multi-person collaborative document editing operation. You can change the default document signature by setting the following actions. Tools/Raw Materials office2003 Steps/Methods (1) Click Tools → Options, and select the User Information tab in the options dialog box that opens. (2) Enter the name of the signature in the user information box, such as "Zero Edge". Enter the abbreviation of the signature name in the abbreviation box, such as "zero". Enter the corresponding address in the mailing address. (3) After setting, click "OK".