Clicking the 'OCR' Configure button on the Action page of the Fields dialog  (see To attach a plugin to a field) displays "Include text when exporting?"

1.Choose either:
oYes to include the "recognized" text in the document. It will be hidden under the image so that it is available for use (e.g. searching) without showing the actual characters. Or
oNo to exclude recognized text from the exported document.
2.The 'Leave blank if OCR failure?' dialog pops up. Choose:
oNo to show 'OCR failed' message whenever no text can be recognized, or
oYes when, for example, it is likely that there is no text to be found in the field area on some of the pages. (In this case, the warning would be superfluous.)
3.Click OK.
The OCR plugin makes use of Microsoft Office Document Imaging. If MODI is not installed on your system, you may simulate it by means of a further dialog that pops up automatically:
oIn "Microsoft Office Document Imaging – not installed. Simulate OCR?" dialog, choose Yes.
Choosing Yes exports dummy text where OCR text would occur in the document. Up to 5 lines are generated so as to fill the field area at 1/6 inch line spacing. For example, a field named ADDRESS might appear as:
Line 1 of field ADDRESS
Line 2 of field ADDRESS
Choosing No instead would cause the field to be blanked or to contain an error message, depending on the configuration set above (step2).
Choosing Cancel causes an error message to be given each time OCR is attempted.