If you're looking to use ABBYY FineReader 15 or similar software, consider the following alternatives:
Several methods have been proposed online to obtain a free license key for Abbyy Finereader 15: Abbyy Finereader 15 License Key Free Fixed
: ABBYY offers a 7-day free trial for individuals (limited to 100 pages) and a 30-day trial for businesses (up to 500 pages). If you're looking to use ABBYY FineReader 15