text in pdf format in word copy

I have a text in pdf format (scanned copy) as well as passed at the ocr by google and therefore in txt format (epub format) I need to have a word copy of it without errors of recognition You must: 1 – check errors of recognition comparing to the original pdf (format errors like spaces and newlines) 2 – put all text in word format. It must be formatted in a standard way (titles and styles) The text is 257 pages. I attach it here for reference.