Split multiple-page PDFs to single-page ones

pdfsplit.py

import argparse
from sys import exit
from PyPDF2 import PdfFileWriter, PdfFileReader

def main():
    try:
        inputpdf = PdfFileReader(open(args.file, "rb"))
    except:
        print("[*] The given file is not in the PDF format!")
        exit()

    for i in range(inputpdf.numPages):
        output = PdfFileWriter()
        output.addPage(inputpdf.getPage(i))
        with open("%s-{}".format(args.file) % (i+1), "wb") as outputStream:
            output.write(outputStream)

def usage():
    parser = argparse.ArgumentParser()
    parser.add_argument('-f', '--file', nargs="?", help="PDF File to split", required=True)
    return parser.parse_args()

if __name__ == '__main__':
    args = usage()
    main()