unable to reactivate Nitro on a new computer

[chris nosal]

I deactivated Nitro on my old computer. When I attempt to activate it on a new one, when I give my serial number, I get the message: "the serial number does not exist".  I am stuck, I am looking  forward to your assistance

[Leslie V]

Hello @chris nosal

Thanks for reaching out to us! I am happy to assist you.

Please note that we no longer support Nitro Pro 9 and its activation servers have been shut down.

We recommend to upgrade to our latest version, V13, 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 13, please visit our upgrade page: 
https://www.gonitro.com/pro/upgrade
 
Alternatively, you can upgrade to the latest build of Nitro Pro 12. Per our Sunset Policy, https://www.gonitro.com/nps/product-details/sunset-policy, we have stopped making feature enhancements to version 12 once we released version 13. You can find Nitro Pro 12.16.9.574 installer from the page below and activate it with your current Nitro Pro 9serial number. 

https://www.gonitro.com/nps/product-details/downloads
 
Please let us know if you need any further assistance.
 

[chris nosal]

Thanks for your response. I had of course downloaded a trial version Nitro Pro 13 and the problems I have described occur when I try to activate it using my serial number. I get the message "the serial number does not exist". Should I understand your response as: my serial number is only applicable for version 12, and not for version 13? Please advise 

[Reymund Oyong]

Hi @chris nosal

Your existing serial number will only work on the latest build of Nitro PDF Pro 12 which is 12.16.9.574. Please uninstall Nitro PDF Pro 13 then install Nitro PDF Pro 12 by downloading the installer at https://www.gonitro.com/product-details/downloads. Please ensure that you click the 'Download Nitro Pro 12' link. 

Once Nitro PDF Pro 12.16.9.574 is installed, you can then activate it by going to the Help tab > About Nitro Pro > Activate. Enter your existing serial number then click the Activate button. 

Kind regards,