I.R.I.S. Readiris Corporate 12 for Mac User Guide - Manual (Page 62)

Chapter 8 – Recognizing documents
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All learning results will be deleted. Next time you click Recognize +
Save, interactive learning will start again.
U SING FONT DICTIONARIES
When scanning many documents of the same type, font quality and
printing quality, you may not want to repeat the learning process
every time. Therefore, it is useful to use font dictionaries. Font
dictionaries contain font information learned during interactive
learning and can substantially increase the recognition results.
Note that font dictionaries are limited to 500 shapes. You are
recommended to create separate dictionaries for specific
applications.
To create a new font dictionary:
 On the Learn menu click the command New Dictionary.
 Click Interactive Learning on the Learn menu to activate it.
 Click Recognize + Save to recognize the document.
 Readiris enters the interactive learning phase. Use the buttons of
the dialog box to save characters in the font dictionary.
 When the recognition is completed, click Save to save the
document.
 Then return to the Learn menu and click Save Dictionary to
save it.
 Enter the name of the dictionary and click Save.
To use an existing font dictionary:
 On the Learn menu click Open Dictionary.