If you're on Nitro Pro 12 or an older version such as Nitro Pro 11, Nitro Pro 10, or Nitro Pro 9, you might run into an instance where you're not able to re-activate your software (Error message "There was a connection issue."). This is because our activation servers no longer support older versions of Nitro Pro so your software needs to be upgraded to either the latest build of Nitro Pro 12, or to Nitro Pro 13.
We recommend to upgrade to our latest version, V13, which comes with significant stability and security improvements, as well as many feature enhancements, in particular in conversion and OCR functions.
If you're an individual user (not part of one of our business plans), you can upgrade to version 13 by visiting our Upgrade Portal. Alternatively, you can upgrade to the latest build of Nitro Pro 12. This upgrade can be installed on top of your already installed license of Nitro Pro and should be activated with your current Nitro Pro serial number. Per our Sunset Policy, we have stopped making feature enhancements to version 12 once we released version 13. You can find Nitro Pro 12 installer here.
If you're a business user (part of one of our business plans/contracts), version 13 also brings license activation flexibility and unlimited eSignatures as part of Nitro Sign being bundled with it. To upgrade to version 13, please reach out to your IT department for assistance, or directly to our Support team (Activation option for our non-VIP business customers) and we will gladly assist you.