You need your 18-digit serial number to check your status online or to reactivate your software. If you do not have it recorded, use these methods to retrieve it: Check Your Email Receipt
:
If you are a security researcher studying license validation (for defense or academic purposes), you should:
The most direct way to check your local license state is through the software's user interface. License Check for v13. - Activation/Installation
The portal will show you how many "slots" or "seats" your license has, and how many are currently in use (e.g., Activations: 1 of 2 ).
To see how many seats are active on a specific 18-digit serial number: Go to the Nitro License Activation Portal. Enter your .
Nitro Pro 13 License Check Jun 2026
You need your 18-digit serial number to check your status online or to reactivate your software. If you do not have it recorded, use these methods to retrieve it: Check Your Email Receipt
:
If you are a security researcher studying license validation (for defense or academic purposes), you should: Nitro Pro 13 License Check
The most direct way to check your local license state is through the software's user interface. License Check for v13. - Activation/Installation You need your 18-digit serial number to check
The portal will show you how many "slots" or "seats" your license has, and how many are currently in use (e.g., Activations: 1 of 2 ). - Activation/Installation The portal will show you how
To see how many seats are active on a specific 18-digit serial number: Go to the Nitro License Activation Portal. Enter your .