If you have proof of purchase, Abbyy’s customer support can often help you retrieve your credentials or provide a path to upgrade to a supported version.
Released in the early 2010s, FineReader 12 introduced key features such as: Abbyy Finereader 12 Serial Number Activation 39
To resolve activation issues or use the official methods, you can use these built-in features: If you have proof of purchase, Abbyy’s customer