I.R.I.S. Readiris 14 for Mac User Guide - Manual (Page 115)

Section 9: Processing Batches of Documents
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 Select an Image input folder.
This is the folder to which you scan the documents.
 Select an Output format and destination.
The configurations you apply in the Format and Destination
group are available here.
Tip: see the topic Saving Documents for more information.
 Select a Text output folder.
This is the folder where your processed documents will be
stored.
It's unnecessary to select an output folder when you choose to
export documents to an online Storage System.
Important note: do not select an output folder that is also being
used as Watched Folder.
Batch Processing Options
 In case you want to process the underlying subfolders of the
Input folder, select Process subfolders.