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Can you please let me know if I have any users on this key. I bought these key years ago and for some reason the activation portal says invalid key. 234***************

Edited by Reymund G.
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Reymund Oyong

Greetings @vlad.prikhodko@yahoo.com

Thank you for reaching out to us through our Community Forums!

In checking the serial number you provided, it was a version 9 license. 
Please note that we no longer support Nitro Pro 11 and older and its activation servers have been shut down. Thus, any activation or deactivation attempt on these versions will no longer work. However, your license has been reset and was transferred to the new activation server, allowing it to activate the latest build of Nitro PDF Pro 12 which is 

You can find the Nitro Pro installer from the link below then can activate it using your existing license:
https://www.gonitro.com/product-details/downloads - click the 'Download Nitro Pro 12' link.  

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

If you are interested to upgrade your license to version 13 (latest version), you can get the discounted upgrade price through our Upgrade Portal at https://www.gonitro.com/support/upgrade 
We recommend Nitro PDF Pro 13 as it comes with significant stability and security improvements, as well as many feature enhancements, in particular in conversion and OCR functions. 

Kind regards, 

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