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Patrick Guthmann was an associate consultant at Smithers Pira. He is an expert in all aspects relating to security documents, their personalisation systems, and related organisations and workflow procedures. During his 11 years of collaboration with François-Charles Oberthur Security Printing and 8 years with Imprimerie Nationale of France Patrick has been involved in numerous international projects, and has lead technical developments of ID documents in, among others, Belgium, Lebanon, Panama, Senegal, Seychelles, Lithuania, Georgia, and in particular France.
Introduction This paper is the third of five parts in a series about optimizing simultaneous offset security features. Simultaneous offset is a security printing technology...