When you start the Recognize Text Using OCR command, Adobe Acrobat returns the following error:
"Acrobat could not perform. recognition (OCR) on this page because: This page contains renderable text."
Solutions
Do one or more of the following:
Solution 1: Obtain a version of the document that does not contain renderable (editable) text.
This message appears if the PDF document already contains editable text. Obtain a copy of the document that does not contain editable text.
Solution 2: Convert the PDF to TIFF and back, and then rerun OCR.
Convert the document to TIFF: