Just got through using Acrobat 9 to scan a 12 page doent. I need to add one word. If I use either insert Text or Typewritter when I type it appears that a character or space has been added. But not text show up. as If it writing in White ink. I though typewriter would work even on image files. I scanned at 600dpi and had OCR set on. It appear That OCR was working.

Suggestions?