The OCR software could be anything like PDFPen, ABBYY FineReader Express or Adobe Acrobat Pro. Automator does not list any features such as 'Add OCR layer to' or show any OCR programs under Automator.
I try to make a high-level script to automate addition of OCR layer to different kind of material such as images, PDFs and screenshots. I am trying to solve a puzzle related to this. For example, how can I add OCR to books in my iTunes without OCR? This would be extremely needed feature because it would make reading of material over iPhone, iPad and OS X much more conformtable. Also, the addition of OCR would improve search results in Finder. So:
How can I do an automator script with an OCR program such as the ABBYY to automatically add OCR to material that does not have the OCR layer?