Adobe (ADBE) 10-Q 2003 Q2 Quarterly report

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Exhibit 99.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Adobe Systems Incorporated (the "Registrant") on Form 10-Q for the quarterly period ended May 30, 2003 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Bruce R. Chizen, President and Chief Executive Officer of the Registrant, certify, in accordance with 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that based on my knowledge:

(1) the Report, to which this certification is attached as an exhibit, fully complies with the requirements of section 13(a) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Dated: July 8, 2003 /s/ BRUCE R. CHIZENBruce R. Chizen
President and Chief Executive Officer

A signed original of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 has been provided to Adobe Systems Incorporated and will be retained by Adobe Systems Incorporated and furnished to the Securities and Exchange Commission or its staff upon request. This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of Adobe Systems Incorporated under the Securities Act of 1933 or the Securities Exchange Act of 1934 (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in such filing.

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Exhibit 99.1