Comment 6 for bug 1804576

imagetopdf filter wrapper I've used for the reproducer:
#!/usr/bin/env python

import sys
import time
import subprocess

def main():
    time.sleep(5)
    args = ["/usr/lib/cups/filter/imagetopdf.bkp"] + sys.argv[1:]
    subprocess.call(args, stdin=sys.stdin, stdout=sys.stdout, stderr=sys.stderr)

if __name__ == "__main__":
    main()