Skip to main content
NoisyMajor
Participant
August 16, 2016
Answered

Serial number Invalid message

  • August 16, 2016
  • 1 reply
  • 2357 views

I have upgraded my computer and reinstalled Acrobat Pro 9 on my replacement laptop.  When I try and to input the serial number, a red cross comes up and a message saying that the serial number is invalid.   Please could you provide advice.   I have already contacted Adobe who say that “I can tell you that the license is active and working fine. Now as the license is not getting activated on your machine, that is a technical issue and i am sorry we will not be able to assist you with this product.  I am afraid, Adobe has discontinued the phone and chat support for Acrobat Pro 10 and prior version products. For the Acrobat Pro 10 and older version products you will have to go to Adobe Forums and the Adobe representatives there would assist you with the old and obsolete products.  Please go to this link and upload your issue or query and they would provide you the resolution.

https://forums.adobe.com/community/meet

This topic has been closed for replies.
Correct answer Sarojini_Nagar

Hi NoisyMajor

Windows 7 is compatible with Acrobat 9.

Try referring this link : Error: "The serial number is not valid for this product" | Adobe Creative Suite

Let us know if this helps.

Regards

Sarojini

1 reply

Sarojini_Nagar
Community Manager
Community Manager
August 22, 2016

Hi noisymajor ,

Please let us know the OS version on your system?

Please refer this link to check for the system OS compatibility with  Acrobat 9: Adobe Acrobat system requirements

Let us know if this helps .

Regards

Sarojini

NoisyMajor
Participant
August 23, 2016

Thanks Sarojini

My OS is Windows 7 Professional Edition (x64) Service Pack 1.  That shouldn't be a problem, should it?

try67
Community Expert
Community Expert
September 30, 2021

I have a similar problem. I moved from the US to UK and to cut a very long story short, my work computer was broken in transit. I had to replace the hard drive. When I try to reinstall Acrobat 8 everything is installed, but the serial number (which I actually found on the Products  page of my account, and attached below) is apparently invalid. This is a version of Acrobat that works very well for me an does everything i need, so I'm not willing to pay a subscription to update untill i actually need some of the extras included. Help! 

 


Regardless, Acrobat 8 can't be activated any longer, so it can't be used. Sorry, but we can't help you.