If you meant you want promotional or educational content for a virtual exchange program that uses Abbyy FineReader legally (e.g., students digitizing texts), let me know and I’ll write that instead.
There are multiple legitimate paths to access the full functionality of ABBYY FineReader PDF 15: Abbyy Finereader 15 Full - Intercambiosvirtuales
What is your for the software (e.g., personal use, business, academic research)? If you meant you want promotional or educational