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Error 20 Cant activate my license


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I cant get any support from NItro PDF.  I have a ton of licenses for my business and have had no problems until now.  One of my users had his computer rebuilt.  I went to the support site and deactivated the license so he can use it again.  Now it says number of activation 0 and number of activation allowed 2.  I put in the serial number and keep getting an error 20.  any ideas or help here?  

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  • Official Nitronaut
Allain Umailin

Hello @grantl@dostoros.com,

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

In order for me to further assist you with your concern, could you please send me a private message and provide the serial number of your Nitro Pro you are having issue with?

Thank you very much in advance and I am looking forward to hearing back from you. 

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