I.R.I.S. Readiris Corporate 12 for Mac User Guide - Manual (Page 46)

Chapter 7 – Zoning documents
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Changing the zone type
To change the zone type of a zone, Ctrl-click the zone and select
the required zone type.
You can also change the zone type of several zones simultaneously:
 Click the pointer button on the image toolbar, then click Select
Zones
Tip: when the pointer is not visible on the image toolbar this means
one of the 5 zone types is currently selected. Click the corresponding
icons on the image toolbar, then click Select Zones.
 Hold down the Shift key while selecting multiple zones.
 On the Layout menu point to Zone Type and click the required
zone type.
Modifying the zone size
 Click inside the zone you want to modify.
 Place the mouse pointer over a marker (on the sides and in the
corners of the zone).
 Click the marker and drag the mouse to modify the zone size.