doc2pdf.py

import os
import sys
import comtypes.client 

def main():
    in_file = os.path.abspath(sys.argv[1])
    out_file = os.path.abspath("%s.pdf" % sys.argv[1])

    try:
        word_application = comtypes.client.CreateObject('Word.Application')
        word_file = word_application.Documents.Open(in_file)
        word_file.SaveAs(out_file, FileFormat=17)
    except Exception, e:
        print e
    finally:
        word_file.Close()
        word_application.Quit()


if __name__ == '__main__':
    main()