Abstract: A printing method, comprising marking an area of a receiver with a variable watermark marking material; and, marking in at least a portion of the area a security image with a second marking material, wherein the first and second marking material are configured such that the security image is variable.

Abstract: A method for verifying the authenticity of a document utilizes artifacts of the printing process. The method includes optically capturing at a predetermined magnification a first image of an indicia printed on the authentic document. A corresponding indicia on a document to be authenticated is optically captured at a predetermined magnification. The captured images and the printing process artifacts depicted therein are characterized. Authenticity is verified where the characterization indicates the captured images are sufficiently identical. An indication is issued as to whether the document is authentic.

Abstract: The invention relates to printing of documents, for example bank checks. According to the various aspects of the invention, a printing system, process and product with microprinting are provided. Documents printed as described may include digitally variable microprint and other enhancements. The invention is particularly useful for enhanced security documents and the production thereof.

Abstract: The invention relates to printing of documents, for example bank checks. According to the various aspects of the invention, a printing system, process and product with a pantograph are provided. Documents printed as described my include a digitally variable pantograph and other enhancements. The invention is particularly useful for enhanced security documents and the production thereof.