If your text contains many special terms, abbreviations, and proper names, adding these terms to the user dictionary will improve OCR quality. For each added word, ABBYY FineReader generates all possible word forms to allow the program to reliably recognize it in its various forms (plural, verb, etc.).
To add a word to the dictionary while checking the spelling:
You can also add and remove words while viewing a user dictionary for a particular language.
The program will notify you if the desired word is already in the dictionary.
You can import user dictionaries created in previous versions of ABBYY FineReader (versions 8.0, 9.0, and 10 are supported).