Verifying text
After performing OCR, you can compare any
part of the recognized text against the corresponding
part of the original image, to verify that the text was
recognized correctly.
The verifier tool is in the Formatting
toolbar. The verifier can also be controlled from the
Tools menu. Hover the cursor over a verifier display
to obtain the verifier toolbar. Use it as follows:

To
turn the Verifier on, click the Verifier tool or press
F9. To turn it off, click the Verifier tool again, press
F9 again, or press Esc.
A full list of verifier keyboard
shortcuts is available in the Online Help.