100 lines
2.8 KiB
Python
100 lines
2.8 KiB
Python
# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc.,
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# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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""" Copyright (c) 2003-2007 LOGILAB S.A. (Paris, FRANCE).
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http://www.logilab.fr/ -- mailto:contact@logilab.fr
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manipulate pdf and fdf files. pdftk recommended.
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Notes regarding pdftk, pdf forms and fdf files (form definition file)
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fields names can be extracted with:
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pdftk orig.pdf generate_fdf output truc.fdf
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to merge fdf and pdf:
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pdftk orig.pdf fill_form test.fdf output result.pdf [flatten]
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without flatten, one could further edit the resulting form.
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with flatten, everything is turned into text.
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"""
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import os
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import tools
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HEAD="""%FDF-1.2
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%\xE2\xE3\xCF\xD3
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1 0 obj
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<<
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/FDF
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<<
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/Fields [
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"""
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TAIL="""]
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>>
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>>
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endobj
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trailer
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<<
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/Root 1 0 R
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>>
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%%EOF
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"""
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def output_field( f ):
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return "\xfe\xff" + "".join( [ "\x00"+c for c in f ] )
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def extract_keys(lines):
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keys = []
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for line in lines:
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if line.startswith('/V'):
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pass #print 'value',line
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elif line.startswith('/T'):
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key = line[7:-2]
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key = ''.join(key.split('\x00'))
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keys.append( key )
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return keys
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def write_field(out, key, value):
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out.write("<<\n")
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if value:
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out.write("/V (%s)\n" %value)
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else:
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out.write("/V /\n")
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out.write("/T (%s)\n" % output_field(key) )
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out.write(">> \n")
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def write_fields(out, fields):
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out.write(HEAD)
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for key in fields:
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value = fields[key]
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write_field(out, key, value)
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# write_field(out, key+"a", value) # pour copie-carbone sur autres pages
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out.write(TAIL)
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def extract_keys_from_pdf(filename):
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# what about using 'pdftk filename dump_data_fields' and parsing the output ?
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os.system('pdftk %s generate_fdf output /tmp/toto.fdf' % filename)
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lines = file('/tmp/toto.fdf').readlines()
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return extract_keys(lines)
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def fill_pdf(infile, outfile, fields):
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write_fields(file('/tmp/toto.fdf', 'w'), fields)
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os.system('pdftk %s fill_form /tmp/toto.fdf output %s flatten' % (infile, outfile))
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def testfill_pdf(infile, outfile):
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keys = extract_keys_from_pdf(infile)
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fields = []
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for key in keys:
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fields.append( (key, key, '') )
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fill_pdf(infile, outfile, fields)
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