Leonard Rosenthol is the Senior Principal Architect for PDF & the Document Cloud at Adobe, having been involved with PDF technology for more than 20 years. He represents Adobe on various international standards bodies including the ISO (where he is the Project Editor for PDF/A, PDF/X and PDF/E), W3C and ETSI/ESI (where he authored the PDF Electronic Signature standard, PAdES).
Prior to re-joining Adobe in 2006, Leonard worked as the Director of Software Development for Appligent, and the Chief Innovation Officer for Apago, while also running the successful consulting business of PDF Sages. Before becoming involved in PDF, Leonard was the Director of Advanced Technology for Aladdin Systems and was responsible for the development of the StuffIt line of products.
Senior Principal Architect, PDF & Document Cloud at Adobe