5. A method according to claim 1 wherein the identification data identifying the user of the document creation system comprises a unique user identity code.
5. A method according to claim 1 wherein the identification data identifying the user of the document creation system comprises a unique user identity code. 8. A method according to claim 5 wherein the unique user identity code, together with personal details of the user and the authentication data, is stored in a database as a central record accessible for authentication purposes.