Rename PDF by meta data

rename-pdf.py

#!/usr/bin/env python2.7

import argparse
import pyPdf
import os
import os.path

def _main():
    parser = argparse.ArgumentParser(description='rename PDF files')
    parser.add_argument('pdf', nargs='+', type=argparse.FileType('rb'))
    parser.add_argument('--format', default='{date} - {title}.pdf', help='default:%(default)s')
    options = parser.parse_args()

    for f in options.pdf:
        try:
            pdfinfo = pyPdf.PdfFileReader(f).getDocumentInfo()
            
            infodict = {'title': pdfinfo.title,
                        'author': pdfinfo.author,
                        'subject': pdfinfo.subject,
                        'date': pdfinfo['/ModDate'][2:8]}
        
            # print infodict

            newfilename = options.format.format(**infodict)
            newfilename = newfilename.replace(':', ' ')
            newfilename = newfilename.replace('/', ' ')
            newfilename = newfilename.replace('\\', ' ')
            newfilename = newfilename.replace('|', ' ')
            newfilename = newfilename.replace('*', '+')
            newfilename = newfilename.replace('?', '.')
            newfilename = newfilename.replace('"', '\'')
            newfilename = newfilename.replace('\n', ' ')

            if f.name == newfilename:
                print 'No rename', newfilename
                continue

            if os.path.exists(newfilename):
                print 'ERROR', 'name conflict', newfilename, f.name
                continue
            os.rename(f.name, newfilename)
            print 'Rename', newfilename
        except:
            print 'Some error'
        
    
if __name__ == '__main__':
    _main()