Signs a document.
public void sign()
throws NotesException
If you want the signature to be saved, you must call the save method after signing the document.
If the script is running on a server, the signer must be listed in "Run unrestricted methods and operations" under the Security tab in the Server record of the Domino Directory. Otherwise the following error occurs: NOTES_ERR_SIGN_NOPERM (4165) "You must have permission to sign documents for server based agents."
Sign method in LotusScript NotesDocument class
See examples