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Need help with activation or upgrade

Michael Wagner

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  • Official Nitronaut

Hello Michael,

Thank you for posting on our Community Forums!

We have upgraded our activation servers. Please install the latest Nitro Pro 12 update ( so you can reactivate successfully: 

Then activate with your Nitro Pro 12 serial number.

I hope this helps. Let me know if you require anything else.

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  • Official Nitronaut
4 hours ago, Gyan Praksh Narayan said:

I am facing activation isue with purchased software  Nitro Pro 13

Thank you for your message - I can help you out.

Can you please let me know what error message you're getting? A screenshot will be very helpful.

I look forward to hearing back from you.

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Michael Wagner

Cannot upgrade and the serial number is correct:


We were unable to validate your serial number. Please ensure you entered it correctly. If you believe you are eligible for an upgrade, please leave a post on our Community Forum and update us with your issue.

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  • 1 month later...
Gyan Praksh Narayan

Your products

Qty. Product name Delivery
Nitro Productivity Suite
Includes Nitro Pro for desktop PDF productivity and Nitro Sign for unlimited eSignatures
Your Serial Number:


Do you already have a trial version of Nitro Pro 13 installed on your computer? If so, there’s no need to download the product installer again. Simply open Nitro Pro and click the ‘Activate’ button located on the toolbar to enter your license / product key (or select Help > About Nitro Pro > Activation).
If you have not already installed Nitro Pro 13, please download the trial version now. You can then use your license / product key to convert the trial version to the full version.

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

Hello Gyan,

Can you please try the following for me:

1. Download our latest Clean Up utility: https://www.gonitro.com/support/tools/cleanup-utility-list
2. Extract the utility to the desktop (it doesn't properly run from within the zip)
3. Run the utility (NOTE: This will remove any custom signatures / stamps. Let me know if these need to be backed up)
4. Reboot
5. Download and install 13.70 from here: https://www.gonitro.com/product-details/downloads

After installation, you can activate by opening Nitro, click on the Help tab > About Nitro Pro > Activate and enter your serial number.

Please let me know how that goes.

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