Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to be
held on June 10, 2009, for ACI Worldwide, Inc. This communication presents only an overview of the
more complete proxy materials that are available to you on the Internet. We encourage you to access
and review all of the important information contained in the proxy materials before voting. To view
the proxy statement and annual report, go to www.proxydocs.com/aciw. To submit your proxy while
visiting this site, you will need the 12 digit control number in the box below. Under new United
States Securities and Exchange Commission rules, proxy materials do not have to be delivered in
paper. Proxy materials can be distributed by making them available on the Internet. We have chosen
to use these procedures for our 2009 Annual Meeting and need YOUR participation. If you want to
receive a paper or e-mail copy of the proxy materials, you must request one. There is no charge to
you for requesting a copy. In order to receive a paper package in time for this years annual
meeting, please make this request on or before June 1, 2009. View Proxy Materials and Annual Report
Online at www.proxydocs.com/aciw A convenient way to view proxy materials and VOTE! Material may be
requested by one of the following methods: TELEPHONE (866) 648-8133 INTERNET
www.investorelections.com/aciw *E-MAIL paper@investorelections.com * If requesting material by
e-mail, please send a blank e-mail with the 12 digit control number (located below) in the subject
line. No other requests, instructions or other inquiries should be included with your e-mail
requesting material. You must use the 12 digit control number located in the shaded gray box below.
To view your proxy materials online, go to www.proxydocs.com/aciw. Have the 12 digit control number
available when you access the website and follow the instructions. ACCOUNT NO. # SHARES ACI
Worldwide, Inc. Notice of Annual Meeting of Stockholders Date: Wednesday, June 10, 2009 Time: 8:30
a.m. EDT Place: ACI Worldwide, Inc., 120 Broadway, Suite 3350, New York, NY 10271 We are holding
the meeting to: 1. Elect eight directors to our Board of Directors to hold office until the 2010
Annual Meeting of Stockholders; and 2. Transact such other business as may properly come before the
Annual Meeting and any adjournment or postponement. The eight directors up for re-election are:
Alfred R. Berkeley, III, John D. Curtis, Philip G. Heasley, James C. McGroddy, Harlan F. Seymour,
John M. Shay, Jr., John E. Stokely, and Jan H. Suwinski. The Board of Directors recommends that you
vote FOR all nominees for director. Our Board of Directors has fixed the close of business on April
13, 2009 as the record date for determining the stockholders entitled to notice of and to vote at
the Annual Meeting and any adjournment. Each share of our common stock is entitled to one vote on
all matters presented at the Annual Meeting. Vote In Person Instructions: While we encourage
stockholders to vote by the means indicated above, a stockholder is entitled to vote in person at
the Annual Meeting. Additionally, a stockholder who has submitted a proxy before the meeting, may
revoke that proxy in person at the Annual Meeting. |