text: #!/usr/bin/python
  # this demo will open an encrypted PDF document
  # decrypt it with the provided password
  # and save as a new PDF document
  # usage: removePass.py <input file> <password> <output file>
  
  import fitz              # this is PyMuPDF
  import sys
  from __future__ import print_function
  
  if len(sys.argv) != 4:
      print('Usage: %s <input file> <password> <output file>' % sys.argv[0])
      exit(0)
  
  doc = fitz.Document(sys.argv[1])
  # the document should be password protected
  assert doc.needsPass
  
  # decrypt the document
  # return non-zero if failed
  
  if not doc.authenticate(sys.argv[2]):
      print('cannot decrypt %s with password %s' % (sys.argv[1], sys.argv[2]))
      exit(1)
  
  # save as a new, non-encrypted PDF
  doc.save(sys.argv[3])
  
  # Note that the save() method automatically also repairs the PDF in case of many types of corruption.
  # Additional options may be used for garbadge collection, compression, etc.
  