What is the serial number?
The serial number (a license) is a unique number you receive when you purchase the program. It is used during activation.
The serial number consists of four capital letters and five groups of four digits and looks like XXXX-YYYY-YYYY-YYYY-YYYY-YYYY, where X - letters, Y - digits. It is indicated in the purchase confirmation you receive after purchasing a license.
If you have lost the serial number of your copy of the program, please refer to the article: Where to find the serial number/activation key for FineReader application?