try
   tell application "Adobe Acrobat Professional"
      activate
      open theFile
      tell application "System Events"
         tell process "Acrobat"
            tell menu bar 1
               tell menu "Document"
                  tell menu item "OCR Text Recognition"
                     tell menu 1
                        click menu item "Recognize Text Using OCR..."
                     end tell
                  end tell
               end tell
               
            end tell
            keystroke return
         end tell
      end tell
      save the front document
      close the front document
   end tell
end try

Script to automate OCR with Hazel and Acrobat

mac

AppleScript