I.R.I.S. Readiris 14 for Windows User Guide - Manual (Page 47)

Section 4: Selecting the Configuration Options
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Modifying the page configuration options
If the page configuration options you selected do not generate the
results you were hoping for, you can change them manually after
scanning/opening your documents.
To modify the options:

In the Pages panel, select the page that needs to be changed.

Then click the Page tab. Here you can re-apply the deskewing
and rotation options.

Use the arrows in the Organize group to switch to other pages.
Tip:
If you want to modify the recognition zones, click the Zones tab. See the
topic Editing the Recognition Zones for more information.