This plugin utilizes the tesseract 'open source' optical character recognition routine (superseding OCR Plugin).

To install tesseract ocr, see

Sweep out the part of the page containing the image of the 'text' to define a field as usual or edit an existing field: see Attaching a plugin to a field.
Then select tesseract from the 'Call plugin' list on the 'Action' page and click Configure: see Tesseract Configuration.

Tesseract is also employed by the rocr plugin when recovering text: see Rocr.

This plugin is not part of the standard EscapeE delivery but may be purchased from RedTitan.