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Unable to Validate Serial Number

Lindsey Callahan

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Lindsey Callahan

I am trying to update my Nitro Pro PDF version 12 to the newest 14 version but when I put in my serial number to do this, it says they are unable to validate my serial number. I have tried deactivating and reactivating my Nitro Pro and that didn't help. Please help!

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  • Official Nitronaut
Leslie V

Hi @Lindsey Callahan

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

I have made the necessary changes so that the upgrade will go through. To upgrade to version 14, kindly visit the following web page:

On the web page, please enter your serial number and follow the provided instructions. This will enable you to obtain a new Nitro Pro 14 serial key along with the necessary installation files. 

Should you require any further assistance, feel free to reach out.

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