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Unable to active my Niro pro PDf 2012

Sharat Rao

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Sharat Rao


I had bought Nitro pro Pdf in 2012. I have now changed my computer. I am not able to activate Nitro pro Pdf in the new computer.

When I enter the license number, it gives an error " -24: Activation error"

If you click on 'Raise a support ticket',  a new page pops up asking for the serial number. When I enter the serial number, it shows that the number is active and  and asks me  to deactivate it. If I click on the "Deactiavte" Tab, it asks me to select the device. But no devices are shown.  Since I do not have the old PC with me (It has been formatted with a new OS), I cannot deactivate the installation on the old PC.

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  • Official Nitronaut

Hello @Sharat Rao

Thanks for reaching out to us! 

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

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: 
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 installer from the page below and activate it with your current Nitro Pro 9 serial number. 

Please let us know if you need any further assistance.

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