live person would be nice Posted April 2, 2021 Report Share Posted April 2, 2021 I have the same issue. Error Code 20 - not a valid license and have 0 of 2 licenses active for both serial numbers we have. I can't call anyone, can't speak with anyone and multiple links are not valid. I have spent hours just searching to try and contact someone... Link to comment Share on other sites More sharing options...
Official Nitronaut Allain Umailin Posted April 2, 2021 Official Nitronaut Report Share Posted April 2, 2021 Hello @live person would be nice, Thank you for reaching out to us through our Community Forums! In order to further assist you, could you please provide the serial number of your Nitro Pro 12? To send it via private message, hover your mouse on top of my name 'AllainU' and select 'Message'. Thank you very much in advance and I am looking forward to hearing back from you. Link to comment Share on other sites More sharing options...
live person would be nice Posted April 6, 2021 Author Report Share Posted April 6, 2021 I sent private message with the serial numbers. Thank you. Link to comment Share on other sites More sharing options...
Official Nitronaut Allain Umailin Posted April 6, 2021 Official Nitronaut Report Share Posted April 6, 2021 Hello @live person would be nice, Thank you for the private message. To continue offering our customers the very best PDF tools, we have upgraded our servers and has shutdown the one your older version of Nitro Pro runs on so please install Nitro Pro 12.16.9.574 using below direct MSI links: x32 http://install.nitropdf.com/professional_12169574/en/retail/nitro_pro12_ba_x86.msi x64 http://install.nitropdf.com/professional_12169574/en/retail/nitro_pro12_ba_x64.msi To know if you have 32-bit or 64-bit, please refer to this article:https://support.microsoft.com/en-ph/help/15056/windows-32-64-bit-faq After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activate by entering one of your serial numbers. Thank you for choosing Nitro and I hope this helps. Link to comment Share on other sites More sharing options...
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