[Python] PyPDF2 complete clone of file

I am trying to copy a PDF in its entirety using PyPDF2, the following code copies the content but not the outline of the pdf.

here is a sample pdf and use the code as follows python test.py <input pdf> <output dest>

Here is the code that I have so far.

from PyPDF2 import PdfFileWriter, PdfFileReader
import sys
import os.path

def main(argv):
if not os.path.isfile(argv[0]) and \
not os.path.isfile(argv[1]):
print("Invalid path")
sys.exit()
input_pdf = PdfFileReader(open(argv[0], "rb"))
output_pdf = PdfFileWriter()
input_pdf_pages = input_pdf.getNumPages()
for i in range(0, input_pdf_pages):
output_pdf.addPage(input_pdf.getPage(i))
output_pdf.write(open(argv[1], "wb"))

if __name__ == "__main__":
main(sys.argv[1:])

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