Try something like this

  !pip install pytesseract pdf2image pillow
  !apt install poppler-utils
  #!apt install tesseract-ocr
  from pdf2image import convert_from_path
  import pytesseract

  pages = convert_from_path('k.pdf', dpi=300)

  all_text = ""
  for page_num, img in enumerate(pages, start=1):
      text = pytesseract.image_to_string(img)
      all_text += f"\n--- Page {page_num} ---\n{text}"

  print(all_text)