Adobe Professional

Moving to Installing, Updating, & Subscribing to Acrobat​

Make sure the product you are trying to activate is the one for which the serial number was acquired.  If you purchased a Suite, the serial will only work with the suite.

Error "The serial number is not valid for this product" | Creative Suite

http://helpx.adobe.com/creative-suite/kb/error-serial-number-valid-product.html

To locate the serial number:

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http://helpx.adobe.com/x-productkb/global/find-serial-number.html