13. A system as claimed in claim 12 , wherein the computer is further configured to determine whether the first document image and the second document image are substantially similar to a document template stored in the template database.
13. A system as claimed in claim 12 , wherein the computer is further configured to determine whether the first document image and the second document image are substantially similar to a document template stored in the template database. 14. A system as claimed in claim 13 , wherein the computer is further configured to determine a sender ID; and compare the sender ID to sender IDs of document skeletons in the document skeleton database.