A scan is a picture of words. OCR PDF runs Tesseract in the browser (English, or Urdu+English) and writes a .txt. First run downloads language data; after that it is local.
Sharp, even light, one column. Then paste into Word or keep the text next to the original scan.
This is not a hidden text layer inside the PDF (a true searchable PDF), it is the text itself — which is what most students and clerks actually paste. No email, no page quota.