You need an OCR (Optical Character Recognition) program for that.
If you don’t want to download it, I think you have 2 options: Install it from a CD (If you have a scanner, it probably came with some OCR program), or use an online service.
Here are a couple of on-line options (I have never tested any of them though):
<a href=”http://www.onlineocr.net/”>Online OCR Service</a>
<a href=”http://www.free-ocr.com/”>Free OCR</a>