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Trying to Reactivate Nitro on my new PC

Anthony Sucato

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Anthony Sucato

My serial # is :


I have 2 license activations, and 0 used, but when I enter my Serial # in NitroPro I receive a window that says "The Serial Number entered does not exist.

Please help.  See below.

Find License

If you’re a Business or Enterprise customer, please contact your Account Executive or our Support team directly.

Not looking for help with Nitro activation? Click here to go back to the main Nitro Support page.

*If the Licensing portal doesn't resolve your activation issue, please submit a support ticket or leave a post in our Community Forum and one of our Support representatives will contact you.

Once you click “Deactivate”, you can activate your license immediately by entering the below serial number into Nitro Pro.

Serial Number 234************293
Version 12
Status Active
Number of Activations 0
Number of Activations Allowed 2


Edited by Reymund Oyong
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  • Official Nitronaut
Reymund Oyong

Greetings @Anthony Sucato

Thank you for reaching out through our Community Forums!

An activation issue such as 'The Serial Number entered does not exist' will likely occur if the version of the license does not match the version of the application that you would like to activate. 

In checking the provided serial number, I can see that it was a version 9 license and was purchased around November 2014.

Please note that we no longer support Nitro Pro 12 and older versions as these versions have reached the End of Life (see Sunset Policy) and their activation servers have been shut down. 

To upgrade to the latest version with a discounted price, please visit our Upgrade page at https://www.gonitro.com/support/upgrade

We recommend upgrading to our latest version, Nitro PDF Pro 14, which comes with significant stability and security improvements and many feature enhancements, particularly in Conversion, OCR, and Accessibility functions. 

Kind regards, 

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