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Trying to sign up for 30% upgrade discount 2 for 1 deal but my Nitro Pro serial number is not recognized?

Minmhiep Kong

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Minmhiep Kong

I am blocked from your promotion of 2 for 1 deal at 30% off, since the web portal keeps telling me my Nitro Pro serial number is not recognized?  I have tried over the past weeks, using different web browsers but all fail?

My NitroPro Serial ID:  5049xxxx9662



Please send my email  upgrade link/steps that work, to enable me to upgrade to the next version, thanks.

email 1


email 2


- Minm


Edited by Reymund G.
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  • Official Nitronaut
Allain Umailin

Hello @Minmhiep Kong,

Thank you for reaching out to us through our Community Forums and our sincere apologies for the inconvenience.

Looking at your account records, you are already running Nitro PDF Pro 13 so please ignore the upgrade email offer that is intended for Nitro Pro 12 and older versions.

As an aside and if you are not yet using Nitro PDF Pro ('About Nitro Pro' window under Help tab), you may just update using the installer from this page:

If you are getting the "Nitro Pro Wizard has failed" or "Something is blocking Nitro from proceeding Error occurred when resolving resource" message using our .exe package, it is because it requires a stable Internet connection to download installation files so please use offline English MSI packages:

x32 https://downloads.gonitro.com/professional_13.58.0.1180/en/retail/nitro_pro13_ba_x86.msi 
x64 https://downloads.gonitro.com/professional_13.58.0.1180/en/retail/nitro_pro13_ba_x64.msi

To know if you have 32-bit or 64-bit Windows system, please refer to this article :

Important: If you are using Chrome or any of the Chromium-based browsers (e.g., Vivaldi, etc.) and you are unable to access the above installer links, you're more than likely experiencing the results of a new security feature that was silently pushed out to the browsers, which blocks .exe/.msi/etc downloads without any visible error or prompt on the browser's frontend user space. In order to bypass this, please try these steps:

a. Right-click the link you're trying to download, and select "Save link as..."
b. Choose your save location and select "Save"
c. On the bottom edge of your browser window, the Downloads bar should now appear and the file will show up with a red error icon, attempting to block the download. Press the caret button and select "Keep"

Thank you and stay safe always.

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