I.R.I.S. Readiris 14 for Windows User Guide - Manual (Page 135)

Section 10: Sending Documents to the Cloud
142

Now you can either fill in the index fields manually, OR

Use Readiris' Drag-and-Drop recognition technology to fill them
in:
o Click inside a field you want to fill in.
o Then click the Text icon to recognize text zones, or click
the Barcode icon to recognize barcode zones.
o Draw a frame around the zone you want to use as index.
When you release the mouse button, the text is filled in in
the field.

Click Send to send the indexed documents, or click Discard to
start over.