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Adobe activation technology is designed to deter casual, unauthorized copying of software. Activation protects the intellectual property and innovation at the heart of the software industry. Adobe is committed to eliminating unauthorized use of its software and is doing so in a manner that has a minimal effect on licensed users. Activation maintains customer privacy and does not change the terms of the existing Product License Agreement.
The activation process is currently included only on the Windows® version of Adobe® Photoshop® CS software licensed to end users at retail. Photoshop CS software may also be a part of the Adobe Creative Suite or the Adobe Video Collection Professional version 2.0. If you are unsure whether your copy of Photoshop CS requires activation, please check the outside of the software box.