I.R.I.S. Readiris 14 for Windows User Guide - Manual (Page 80)

Section 8: Editing the Recognition Zones
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*Note: when processing Arabic documents, the numbers run from
right to left, if you select Arabic as main language.
Example of recognition zones
Modifying the automatic Page Analysis
The zones we discussed above are created automatically by an
option called Page Analysis. This automatic page analysis is far
from fixed. It can be modified in several ways. For instance, you
can manually create new zones, change the zone of existing zones,
expand and reduce zones in size, change the sort order, and so on.
Note, however, that is not possible to do any text editing inside
Readiris. That sort of editing is to be done in your target
application, e.g. Microsoft Word, Excel, etc.
To access the Editing and Layout options:

Scan or open a document in Readiris.

Click the Zones tab.