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Nitro Pro 11 - Previous User, Serial no longer recognised for upgrade or reinstallation.

Danica Blackledge

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Danica Blackledge


I was hoping to re-download the Nitro 11 software I had previously purchased, but my new download link doesn't work. 

I entered my serial into Upgrade Discount page, and it was rejected. 

Can someone please contact me to revalidate my serial? Or give me a download link to Nitro 11.

Thank you, 


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  • Official Nitronaut

Hello Danica,

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

Please note that we no longer support Nitro Pro 11 and its activation servers have been shut down.

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: 

(You may try upgrading again, I made the necessary changes so that this can go through without any error message.)

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 11 serial number. 

Please let us know if you need any further assistance.

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