: Your computer generates a unique "Installation ID" after you enter your serial number in the Nitro Pro Activation Assistant.
An "activation certificate" is a unique, often very long string of characters (it can be over 7,000 characters long) generated by Nitro's licensing system. It is the key piece of data used in Nitro Pro’s manual activation process to verify that a user has a legitimate license for the software. This manual method is typically used when a computer cannot maintain a direct internet connection to activate automatically. nitro pro activation certificate
