12. Method according to claim 1 , wherein a statistical comparison is made between the document and the visual depiction, and wherein the information pertinent to the found document depends on a degree of conformance between the document and the visual depiction.
13. Method according to claim 12 , wherein the statistical comparison comprises converting the document to an image, if the document is not already an image, and converting the visual depiction to an image, if the visual depiction is not already an image, and an image comparison step between the resulting images.