American Stock Exchange Lists Common Stock of Document Security Systems, Inc. NEW YORK, April 22 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) today listed the common stock of Document Security Systems, Inc. under the ticker symbol DMC. Document Security Systems, Inc. is a technology company with patents in printed security features that verify and prevent forgery, duplication, counterfeiting, copying, scanning and re-imaging for any type of printed documents. The company licenses its technologies to approved worldwide security printers. The company also manufactures secure printed documents. The company's technology can be utilized on such sensitive documents as currency, car titles, drivers licenses, birth certificates, gift certificates, ID Cards, labels, holographs, engineering plans, examinations, school transcripts and brand packaging. "We are pleased to welcome Document Security Systems to the American Stock Exchange," said John McGonegal, senior vice president of the Amex Equities Group. "The Amex looks forward to working with Document Security Systems to increase investor attention and provide the support and services a growing company needs in today's competitive marketplace." Patrick White, Chief Executive Officer and President of Document Security Systems, Inc. stated, "We are proud to join the list of companies whose securities trade on the American Stock Exchange. We anticipate that listing our stock on the Amex, an Exchange with a long and distinguished history, will increase the visibility of Document Security Systems, Inc. and our state-of- the-art anti-counterfeiting technologies to potential investors and clients. We also believe our Amex listing will facilitate broader participation in our stock by brokers and institutional investors, leading to greater liquidity in our securities, all of which will benefit our shareholders." The specialist in Document Security Systems, Inc. will be J. Streicher & Co., LLC. For further information on DMC and other Amex-listed companies, please visit http://www.amex.com/. The American Stock Exchange(R) (Amex(R)) is the only primary exchange that offers trading across a full range of equities, options and exchange traded funds (ETFs), including structured products and HOLDRS(SM). In addition to its role as a national equities market, the Amex is the pioneer of the ETF, responsible for bringing the first domestic product to market in 1993. Leading the industry in ETF listings, the Amex lists 138 ETFs. The Amex is also one of the largest options exchanges in the U.S., trading options on broad-based and sector indexes as well as domestic and foreign stocks. For more information, please visit http://www.amex.com/. DATASOURCE: American Stock Exchange CONTACT: Lynn Duffy of American Stock Exchange, +1-212-306-1654, Web site: http://www.amex.com/

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