Presstek to Celebrate 20 years of Innovation and Highlight its Digital Offset Printing Solutions

HUDSON, NH—Sept. 5, 2007—Presstek Inc. (Nasdaq: PRST), the leading manufacturer and marketer of digital offset printing business solutions, today announced that it will feature its full line of digital offset solutions and celebrate 20 years of company innovation at Graph Expo 2007 (Booth # 3829), the largest North American printing trade show, Sept. 9-12, 2007, at McCormick Place in Chicago. The company will showcase its chemistry-free digital offset Direct Imaging (DI®) presses and CTP solutions, as well as introduce several enhancements to the Presstek product line. In addition, Presstek’s new premier distributor, Pitman Company (Booth # 4421), will highlight Presstek’s DI presses in its booth.