Remove JSTOR watermark from PDF

remove-jstor-watermark.py

# first install pdftk. For recent MacOS version, get it here: https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/pdftk_server-2.02-mac_osx-10.11-setup.pkg

import os

os.system(f"pdftk input.pdf output uncompressed.pdf uncompress")

with open("fixed.pdf", "wb") as outfile:
  for line in open("uncompressed.pdf", "rb"):
      patterns = [
          b"This content downloaded from",
          b"0.0.0.0", # enter displayed IP address here
          b"All use subject to"
      ]
      for pattern in patterns:
          if pattern in line:
              line = b"()Tj"
      outfile.write(line)

os.system(f"pdftk fixed.pdf output book.pdf compress")