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Serial number not recognised and can't activate Nitro. Have deactivated it from the other PC.

Raymond Goh

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  • Official Nitronaut
Reymund Oyong

Greetings @Raymond Goh

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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