Have new computer and when try to activate it says my serial number doesn't exist

[Paula Fernandes]

I have a new computer and want to transfer Nitro Pro from old computer to new one. When I try activation it tells me my licence doesn't exist but it does. Please help urgently need this working asap for an important job I need to do.

Many thanks in advance 

[Leslie V]

Hello @Paula Fernandes

Thanks for your message!

The error message means that the serial number you are trying to activate is for a different version of Nitro PDF Pro. Your serial number is for Nitro PDF Pro 11.

Please note that we no longer support Nitro Pro 11 and its activation servers have been shut down.

We recommend to upgrade to our latest version, V14, which comes with significant stability and security improvements, as well as many feature enhancements, in particular in conversion and OCR functions. To upgrade to Nitro Pro 14, please visit our upgrade page: 
https://www.gonitro.com/pro/upgrade

Please let me know if you have any questions.