# -*- coding: cp1252 -*-
# script to rename PDF files according to with title + name (unique)
# pyPdf available at http://pybrary.net/pyPdf
# runs as  python thisPy.py      in  a UNIX-shell (in windows "python" not required)
# http://blog.isnotworking.com/2006/08/extract-pdf-title-from-all-files-on.html


from pyPdf import PdfFileWriter, PdfFileReader
import os
trgtfilename = ""

for fileName in os.listdir('.'):
  if fileName.lower()[-3:] != "pdf": continue
  try:
    actfile = file(fileName, "rb")
    input1 = PdfFileReader(actfile) 
    trgtfilename = input1.getDocumentInfo().title + "_" + fileName
  except:
    print "\n## ERROR ## %s Title could not be extracted. PDF file may be encrypted!" % fileName
    continue
 
  del input1
  actfile.close()

  print 'Trying to rename from:', fileName, ' to ', trgtfilename
  try:
    os.rename(fileName,trgtfilename)
  except:
    print fileName, ' could not be renamed!'
    print '\n error: are prior names unique? Maybe the filename already exists or the document is already opened!'