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Is Nitro Pro 11 already obsolete

Lar Scott

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I have Nitro Pro 11, which my receipt show 2 installs allowed. SN 234***************

I am trying now to install which is not working. My impression from the forums is that v11 is no longer supported. Is this correct? I cannot manually install the program I purchased from you 3 years ago on my new machine? Am I understanding correctly? I have to purchase a $90 upgrade for both machines? Please tell me you guys are not doing that!!


Larry Scott-714.***.****


Edited by Reymund G.
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  • Official Nitronaut

Hi @Lar Scott

Thank you for reaching out to us through our Community Forums!

My sincere apologies for the inconvenience this issue has caused. Your version 11 serial number is still active and it is a perpetual license.
To resolve this activation issue, please uninstall the existing Nitro PDF Pro on your computer then install the latest build of Nitro PDF Pro 12 which is

You can find Nitro PDF Pro installer from the link below and activate it with your current version 11 serial number. 
https://www.gonitro.com/nps/product-details/downloads - Click the 'Download Nitro Pro 12' link (not the Nitro Pro 13 link)

After installing Nitro PDF Pro, you should be able to activate using your existing serial number.
To activate, open Nitro PDF Pro then go to the Help tab > About Nitro Pro > Activate. Enter the serial number then click the Activate button. 

Kind regards,

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