pdf_meta.py

#!/bin/env python

"""
sudo easy_install pip
pip search pypdf
sudo pip install PyPDF2

chmod u+x pdf_meta.py
python pdf_meta.py
"""

from PyPDF2 import PdfFileReader, PdfFileMerger

FILE_NAME = ''

def read_metadata(name):
    inputPdf = PdfFileReader(open('%s.pdf' % name, 'rb'))
    print inputPdf.getDocumentInfo()

def edit_metadata(name, data):
    merger = PdfFileMerger()
    with open('%s.pdf' % name, 'rb') as f0:
        merger.append(f0)

    merger.addMetadata(data)

    with open('%s_meta.pdf' % name, 'wb') as f1:
        merger.write(f1)

read_metadata(FILE_NAME)

metadata = {u'/who':'niqdev', '/Producer': u'recudroP/'}
edit_metadata(FILE_NAME, metadata)

read_metadata('%s_meta' % FILE_NAME)