14. The system of claim 12 , wherein the two dimensional geometric shape comprises a word centroid and the document signature indicates a signature location of the centroid in the image.
14. The system of claim 12 , wherein the two dimensional geometric shape comprises a word centroid and the document signature indicates a signature location of the centroid in the image. 15. The system of claim 14 , wherein the signature location comprises a location of the center of the centroid in the image.