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Upgrading from Nitro Professional


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I need to upgrade onto my new windows 11  laptop.  The 


Nitro CS said in the chat "We were unable to validate your serial number, it isn't being recognized on our upgrade portal. If you believe you are eligible for an upgrade, please leave a post on our Community Forum and update us with your issue." 


Please help



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  • Official Nitronaut
Reymund Oyong

Greetings @CARL GOODE

Thank you for reaching out through our Community Forums!

I understand that you are attempting to upgrade your serial number but it is not recognized by our Upgrade Portal.
Could you please provide the serial number that you would like to upgrade to version 14?

Kind regards, 

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Posted (edited)

Installation ID: **
Computer ID  : ***
License code : **

Nitro PDF Professional Ver.



Edited by Leslie V
Deleted Confidential Information (Serial Number)
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  • Official Nitronaut


Thank you for providing us with your serial number.

We regret to inform you that we were unable to locate any records associated with the provided serial number in our system. Please note that if you purchased Nitro from a reseller or retailer, we may not have access to the relevant information in our databases. In such cases, we recommend reaching out to the partner reseller or retailer from whom you obtained the license. They should be able to assist you with any necessary upgrades .

Alternatively, if you have a purchase receipt available, please share it with us, so we can see what we can do here. Cheers!

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