<PAGE>

                                                                   EXHIBIT 10.73

                                 AMENDMENT NO. 7
                                     TO THE
                     POSTSCRIPT SOFTWARE DEVELOPMENT LICENSE
                            AND SUBLICENSE AGREEMENT
                                     BETWEEN
                           ADOBE SYSTEMS INCORPORATED
                                       AND
                          PEERLESS SYSTEMS CORPORATION

                          EFFECTIVE AS OF: MAY 22, 2003

         This Amendment No. 7 (the "Amendment") to the PostScript Software
Development License and Sublicense Agreement dated July 23, 1999, as previously
amended (the "Agreement") is between Adobe Systems Incorporated, a Delaware
corporation having a place of business at 345 Park Avenue, San Jose, CA 95110
("Adobe") and Peerless Systems Corporation, a Delaware corporation having a
place of business at 2381 Rosecrans Avenue, El Segundo, California 90245
("Peerless").

         WHEREAS, the purpose of this Amendment to the Agreement is to add a
Primary Development Site and protection measures for any Adobe Information that
is transmitted between any Primary Development Sites as specified below.

         NOW, THEREFORE, the parties agree as follows:

         1.       EXHIBIT C of the Agreement is hereby deleted and replaced in
its entirety with the EXHIBIT C attached hereto.

         2.       The following new Paragraph 4.6 is hereby added to EXHIBIT N-1
("Secure Procedures for Handling Adobe Support Information") of the Agreement:

                  "4.6 Peerless may transmit Adobe Support Information between
                  Development Sites provided that it implements adequate
                  security measures to ensure that such Adobe Support
                  Information is protected against access or use while in
                  transit to the receiving Development Site and that
                  transmission of Adobe Core Source only occurs between Primary
                  Development Sites. More specifically, Peerless shall restrict
                  the transmission of Adobe Support Information between
                  Development Sites by utilizing end-to-end encrypted
                  communications to ensure the security and confidentiality of
                  the communications between Development Sites. Such encryption
                  shall be at least 128-bit key length encryption, or no less
                  than the maximum applicable key bit-length limit imposed by
                  law if less than 128 bits. As used herein, "end-to-end
                  encrypted communications" means that the Adobe Support
                  Information is encrypted at the originating Secure Computer
                  System at the originating Development Site and decrypted only
                  at the destination Secure Computer System at the destination
                  Development Site without any intermediate decryption."

         3.       All other terms and condition of the Agreement shall remain in
full force and effect.

<PAGE>

         IN WITNESS WHEREOF, each of Adobe and Peerless has executed this
Amendment No. 7 to the PostScript Software Development License and Sublicense
Agreement by its duly authorized officer.

Adobe:                                             Peerless:

ADOBE SYSTEM INCORPORATED                          PEERLESS SYSTEMS CORPORATION

By: /s/ GLORIA T. CHEN                             By: /s/ HOWARD J. NELLOR

Print                                              Print
Name: Gloria T. Chen                               Name: Howard J. Nellor

Title: V.P. Worldwide Sales Operations             Title: President & CEO

Date: 5/20/03                                      Date: May 8, 2003

                                       2
<PAGE>

                                    EXHIBIT C

                       DEVELOPMENT AND REPRODUCTION SITES

                                   (PEERLESS)

Peerless' use and storage of the Adobe Core Source and other Adobe Support
Information shall be restricted to the following Primary Development Site(s):

<TABLE>
<CAPTION>
      Name of Development Site:                         Address:
----------------------------------------------------------------------
<S>                                              <C>
1. Peerless Systems Imaging Products             20415 72nd Ave S.
                                                 Kent, WA 98032
----------------------------------------------------------------------
2. Peerless Systems Corporation                  2381 Rosecrans Avenue
                                                 El Segundo, CA
----------------------------------------------------------------------
</TABLE>

Peerless' use and storage of the Adobe Support Information (excluding Adobe Core
Source) shall be restricted to the following Secondary Development Site(s):

<TABLE>
<CAPTION>
Name of Development Site:                                   Address:
--------------------------------------------------------------------------------
<S>                                              <C>
None.                                            _______________________________
                                                 _______________________________
                                                 _______________________________
--------------------------------------------------------------------------------
</TABLE>

Peerless identifies the following Peerless Reproduction Site(s):

<TABLE>
<CAPTION>
Name of Development Site:                                   Address:
--------------------------------------------------------------------------------
<S>                                              <C>
None.                                            _______________________________
                                                 _______________________________
                                                 _______________________________
--------------------------------------------------------------------------------
</TABLE>

         Upon written request by Adobe at any time during the term of this
Agreement, Peerless shall promptly provide a current list of all of its
Reproduction Site(s).

                                        3