I.R.I.S. Readiris 14 for Windows User Guide - Manual (Page 27)

Readiris TM 14 – User Guide
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
Click the View menu.

Clear the check boxes of the panels you want to hide.
Moving the panels around
The panels do not have fixed positions. They can be placed
anywhere inside the Readiris interface.
To move a panel:

Double-click its title bar.

The panel appears in a reduced version in the middle of
the interface.

Now you can drag it to a different position, and expand
it.