posted 9 years ago
If you mean it's like a tiff of a page of text, like a photo of text, you may be able to convert it to pdf and then use ocr on the pdf to extract the text. There are ocr websites were you can upload short pdfs and then download it in searchable text pdf form
If this is the kind of thing you want to do, but you have to develop an algorithm to do it, then you will have to write or otherwise obtain some sort of ocr code to run on the tiff