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1 # copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved. 2 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr 3 # 4 # This file is part of logilab-common. 5 # 6 # logilab-common is free software: you can redistribute it and/or modify it under 7 # the terms of the GNU Lesser General Public License as published by the Free 8 # Software Foundation, either version 2.1 of the License, or (at your option) any 9 # later version. 10 # 11 # logilab-common is distributed in the hope that it will be useful, but WITHOUT 12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 13 # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more 14 # details. 15 # 16 # You should have received a copy of the GNU Lesser General Public License along 17 # with logilab-common. If not, see <http://www.gnu.org/licenses/>. 18 """Manipulate pdf and fdf files (pdftk recommended). 19 20 Notes regarding pdftk, pdf forms and fdf files (form definition file) 21 fields names can be extracted with: 22 23 pdftk orig.pdf generate_fdf output truc.fdf 24 25 to merge fdf and pdf: 26 27 pdftk orig.pdf fill_form test.fdf output result.pdf [flatten] 28 29 without flatten, one could further edit the resulting form. 30 with flatten, everything is turned into text. 31 32 33 34 35 """ 36 __docformat__ = "restructuredtext en" 37 # XXX seems very unix specific 38 # TODO: check availability of pdftk at import 39 40 41 import os 42 43 HEAD="""%FDF-1.2 44 %\xE2\xE3\xCF\xD3 45 1 0 obj 46 << 47 /FDF 48 << 49 /Fields [ 50 """ 51 52 TAIL="""] 53 >> 54 >> 55 endobj 56 trailer 57 58 << 59 /Root 1 0 R 60 >> 61 %%EOF 62 """ 63 6668 keys = [] 69 for line in lines: 70 if line.startswith('/V'): 71 pass #print 'value',line 72 elif line.startswith('/T'): 73 key = line[7:-2] 74 key = ''.join(key.split('\x00')) 75 keys.append( key ) 76 return keys7779 out.write("<<\n") 80 if value: 81 out.write("/V (%s)\n" %value) 82 else: 83 out.write("/V /\n") 84 out.write("/T (%s)\n" % output_field(key) ) 85 out.write(">> \n")8688 out.write(HEAD) 89 for (key, value, comment) in fields: 90 write_field(out, key, value) 91 write_field(out, key+"a", value) # pour copie-carbone sur autres pages 92 out.write(TAIL)9395 # what about using 'pdftk filename dump_data_fields' and parsing the output ? 96 os.system('pdftk %s generate_fdf output /tmp/toto.fdf' % filename) 97 lines = file('/tmp/toto.fdf').readlines() 98 return extract_keys(lines)99 100102 write_fields(file('/tmp/toto.fdf', 'w'), fields) 103 os.system('pdftk %s fill_form /tmp/toto.fdf output %s flatten' % (infile, outfile))104106 keys = extract_keys_from_pdf(infile) 107 fields = [] 108 for key in keys: 109 fields.append( (key, key, '') ) 110 fill_pdf(infile, outfile, fields)111
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