ictoria, B.C.- ACD Systems International Inc. (TSE:ASA), maker of the world's most popular digital imaging software, has signed a co-marketing agreement with Corbis Corporation of Bellevue, Washington, owner of the world's largest collection of digital images. Under the terms of the agreement, Corbis and ACD Systems will use their multi-million user bases to sell each other's digital image products online. ACD's digital imaging software will be promoted on www.Corbis.com. In addition, Corbis will promote ACD software through its e-newsletter, circulated monthly to its 200,000 users. In turn, ACD Systems will promote Corbis and its vast collection of downloadable images on its highly popular website, www.ACDSystems.com. Users will be able to access either site from the other by hotlink. ACD's platform software, ACDSee, is the world's most popular digital image viewer, browser, database, file management and image management tool. With more than 15 million individuals users and 15,000 corporate users, ACDSee provides easy-to-use, high-speed viewing of images in high resolutions, with state-of-the-art management tools. ACD provides more than 500,000 software downloads a month from its website.