Nitro Pro 13 License Check Verified -

Select the option to deactivate the old, changed machine, then re-activate on your current machine. 2. "License Already in Use" Error

As of late 2024 / early 2025, Nitro has shifted focus to v14 and the new Nitro PDF Pro (subscription). While the v13 activation servers are still running, there is no guarantee they will remain online forever. Nitro Pro 13 License Check