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Activation code not recognised


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I've deactivated my license on an old device but the activation code/serial number on my new device (actaully 2 of them) returns a message "The serial number entered does not exist". 

Yet the same code/serial number reports that the status is active and that there are zero current activations. How to fix?

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  • Official Nitronaut
Reymund Oyong


Thank you for reaching out through our Community Forums!

When accessing the activation portal to check the license, please make sure to take note of the version specified, as that is the version you should install on your computer.
The version 13 and 14 installers are located from the link below:


If you have a version 12 license, you can download the installer from the link below:

32bit - http://install.nitropdf.com/professional_12169574/en/retail/nitro_pro12_ba_x86.msi 
64bit - http://install.nitropdf.com/professional_12169574/en/retail/nitro_pro12_ba_x64.msi

To know if you have 32-bit or 64-bit, please refer to this article:

Once the correct version is installed, please try to activate it using your existing license.

Kind regards, 

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