Presstek to Present at Adams Harkness 24th Annual Summer Seminar HUDSON, N.H., July 29 /PRNewswire-FirstCall/ -- Presstek, Inc. (NASDAQ: PRST), a leading manufacturer and marketer of environmentally responsible high tech digital imaging solutions for the graphic arts and laser imaging markets, announced today that Presstek's President and Chief Executive Officer, Edward J. Marino, is scheduled to present to leading institutional investors at the Adams Harkness 24th Annual Summer Seminar at 3:00 p.m. (Eastern) on Thursday, August 5, 2004 in Boston. The Adams Harkness Annual Summer Seminar is one of the industry's longest- running conferences focusing exclusively on the growth markets. Mr. Marino will join executives from more than 200 public and private companies to present at the seminar. "We are looking forward to showcasing our company to some of the country's top growth investors at this year's Summer Seminar," said Marino. "This is an ideal venue in which we can provide an important mid-year update of our growth strategy and achievements." Mr. Marino's presentation will be broadcast live at 3:00 p.m. (Eastern) over the Internet at http://www.presstek.com/, click on the IR Calendar in the Investor section. For further information about the conference and additional web cast information, visit http://www.ahh.com/. About Presstek Presstek, Inc. is a leading developer of digital laser imaging and chemistry-free plate technologies for the printing and graphic arts industries. Marketed to world-leading press manufacturers and directly to end users, Presstek's patented DI(R), CTP and plate products eliminate photographic darkrooms, film and toxic processing chemicals, reduce the printing turnaround time and lower the production costs. The company's Lasertel subsidiary supplies it with the valuable resources necessary for its next generation laser imaging devices. About Adams Harkness Adams Harkness is a privately held institutional investment bank focused on growth companies in the technology, healthcare and consumer sectors. With a focus on research-driven investment ideas, Adams Harkness offers investment banking, institutional sales and trading, asset management and corporate services. Headquartered in Boston, Massachusetts, and with offices in New York City and San Francisco, Adams Harkness offers the expertise of a national investment bank with the personalized attention and long-term client relationships of a boutique investment bank. More information is available at http://www.ahh.com/. Member NYSE/NASD/SIPC. CONTACT: Jane Miller Corporate Relations Manager (603) 594-8585 ext. 3346 DATASOURCE: Presstek, Inc. CONTACT: Jane Miller, Corporate Relations Manager, Presstek, Inc., +1-603-594-8585 ext. 3346 Web site: http://www.presstek.com/

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