Unable to activate my Nito Pro 12 copy using the provided serial number

[Tim Boening]

I am unable to active my Nitro Pro 12 software with the provided serial number.  

[Reymund Oyong]

Greetings @Tim Boening

Thank you for reaching out through our Community Forums!

Please ensure that you are running the Nitro PDF Pro 12.16.9.574 so you could successfully activate using your existing version 12 license. To check the version and build, please open the application and then navigate to the Help tab > About Nitro Pro. 

The Nitro PDF Pro 12.16.9.574 installer can be located 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:
https://support.microsoft.com/en-ph/help/15056/windows-32-64-bit-faq 

Kind regards,