Remove annoying popup messages on VW PDFs downloaded from erWin

remove-vw-pdf-popups.py

#!/usr/bin/env python

def remove_popups(filename) -> None:
    with open(filename, 'rb') as fb:
        s = fb.read()
        fb.close()
    s = s.replace(b'showUSAPopup=true', b'showUSAPopup=0;;;')
    s = s.replace(b'showPopup=true', b'showPopup=0;;;')
    s = s.replace(b'showUSAPopup', b'nonoUSAPopup')
    with open(filename, 'wb') as fb:
        fb.write(s)
        fb.close()
    del s


def usage() -> None:
    print(f"Usage: {sys.argv[0]} [directory]")
    print("\t[directory] is the directory containing PDFs with popup message to be removed.")


if __name__ == "__main__":
    import os
    import sys

    if len(sys.argv) != 2:
        usage()
        exit(1)

    if not os.path.isdir(sys.argv[1]):
        print(f"Error: Invalid directory provided: '{sys.argv[1]}'")
        exit(1)

    for root, dirs, files in os.walk(sys.argv[1]):
        print(f"[{root}]")
        for file in files:
            if file.endswith(".pdf"):
                print(f"\t{file}")
                remove_popups(os.path.join(root, file))
        print()