I'm using OCR Text Recognition integrated into Adobe Acrobat Pro 8 to produce an (invisible) searchable text overlay for text pages I have scanned. This is very neat for copying some phrases to the clipboard or for text searching.
In some cases, Adobe does a rather poor job and in some cases it just produces a few typos, making the corresponding words or sentences un-searchable. In the Adobe Forums, user strontium87 explains that you can manually show the text and then modify with the Touchup Text tool, before setting it to invisible again. Since this method is quite cumbersome - does anyone know of an easier way to do this? Maybe with an external tool?