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Nitropro 13 license suddenly not recognized


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Suddenly today NitroPro requests I enter my serial number / license. I enter the serial number I received from NitroPro.  I receive a message that my license is not valid. This is not a new machine. I am the original licensee. I just want to do my work. This is irritating.  Please help. I also copied and pasted a long code to nitroPro.com/activation with the understanding that a new long code would be generated that I would reenter. No code was generated at all. I also couldn't "insert image from URL" as the URL address for activationportal.me/selfservice/activation.aspx?Type=1&cid=7267&pid=7275&lang=en wasn't recognized.


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  • Official Nitronaut

Hello @presidentialtoe

Thanks for your message - I'm happy to assist you.

The error message means that the serial number you are trying to activate is for a different version of Nitro PDF Pro.

Your serial number is for Nitro PDF Pro 13, please uninstall what you have and get the correct version 13 installer from the page below:

After installation, activate with your serial number.

Please let me know how that goes.

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