I.R.I.S. Readiris 14 for Windows User Guide - Manual (Page 52)

Readiris TM 14 – User Guide
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Recognizing Arabic Documents
When recognizing Arabic documents in Readiris Corporate, you
can choose which recognition engine to use: omnifont or multifont.
By default, Readiris uses the omnifont engine, which recognizes all
fonts. To obtain the best recognition results it is recommended to
use the multifont engine. This way, you can select the fonts used in
your documents.
 Click the expansion arrow on the Languages group.
 Then select Arabic from the Main language list. The Fonts
button now becomes available.
 Click the Fonts button, then select Use multifont engine.
 Select the fonts you want to recognize in the left column, and
move them to the right column by clicking the right arrow.