David De La Fuente Posted January 10 Report Share Posted January 10 I am unable to open Nitro at all. Every time I try to open a file it says "Expired Trial" even though I have a valid serial number. Link to comment Share on other sites More sharing options...
Official Nitronaut Reymund G. Posted January 10 Official Nitronaut Report Share Posted January 10 Greetings @David De La Fuente Thank you for reaching out to us through our Community Forums! Expired Trial message means the software is not yet activated. To activate it, open Nitro then navigate to the Help tab > About Nitro Pro > Activate. Enter your serial number then click Activate. After a successful activation, you should no longer see the 'Expired Trial' message. If you cannot proceed with the activation, please provide the serial number and description of the activation error message. Kind regards, Link to comment Share on other sites More sharing options...
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