Activation of CS4

[TBrianCox]

I have attempted to activate CS4 Creative Suite on my Mac. It tells me the serial number is not valid.

[John T Smith]

I don't have CS4 or a Mac, but some links that may help

Invalid Serial Number https://forums.adobe.com/thread/2359923

-and revoked volume number https://forums.adobe.com/thread/2477259

-Problems with software validation https://forums.adobe.com/thread/2273259

-Warning that software is not genuine http://www.adobe.com/genuine.html

-http://prodesigntools.com/dont-buy-adobe-software-on-ebay-craigslist-or-amazon-marketplace.html

Invalid software https://helpx.adobe.com/x-productkb/global/digital-certificate-revoked-aam.html

-and more information about fraudulent sellers in https://forums.adobe.com/thread/2352426

Also, did you download the installer that exactly matches your serial number?

-ie, the Master Collection installer will not work with any other Suite or individual program's serial number

-upgrade qualifying product https://helpx.adobe.com/creative-suite/kb/error-serial-number-qualifying-product.html

-per kglad to install CS4 upgrade by using an old Macromedia number https://helpx.adobe.com/x-productkb/policy-pricing/macromedia-legacy-activation-error.html

[Peru Bob]

Is it a Mac serial number?

[TBrianCox]

It is a Mac serial number.

[Jeff A Wright · Accepted solution]

TBrianCox, I am sorry for any confusion but it appears you are attempting to install an education version of Creative Suite 4 Design Premium for Mac OS.  The retail installation files that are available at Download Adobe Creative Suite 4 (CS4) products will not accept the educational serial number and it will be seen as invalid.

If you need to reinstall Creative Suite 4 Design Premium then you will need to use the installation files provided with your purchase.  In addition, if you are installing Creative Suite 4 on macOS 10.12 or later then you will also need to implement the workaround listed in Installing Creative Suite on macOS 10.12 (Sierra) to begin the installation process.

For more information on where to locate your registered serial numbers see Find your serial number ,TBrianCox.