: You can download the compatible Nitro Pro 12 installer from the Nitro Downloads page . Activation Steps
: If your software has reverted to "Trial mode," follow the steps above to enter your existing serial number. Nitro Pro 9 Activation
If you have an existing Nitro Pro 9 serial number, you can still use it by following these official workarounds: Upgrade to Nitro Pro 12 : You can download the compatible Nitro Pro
and 12 are considered "End of Life" and no longer receive security patches or feature updates . Nitro Pro 9 Activation
: If your computer does not have an internet connection, Nitro Pro typically offers a "Manual" activation option within the activation dialog that uses an Installation ID and an Activation Certificate. Lost Serial Number
