If you do not have a key, consider these modern alternatives:
: Once the license is verified, the software will switch from "Trial" or "Restricted" mode to full professional mode. Where to Find Your Key Abbyy Finereader 12 Professional Activation Key
This is the fastest method. The software connects to ABBYY servers to verify the key. Manual/Email Activation: If the computer is offline, the wizard will generate an Installation ID If you do not have a key, consider
: If you bought a retail disc, the serial number is printed on a card inside the CD case or on the EULA. Abbyy Finereader 12 Professional Activation Key
If your computer isn't connected to the internet, you can generate an "Installation ID" and activate it via another device.