-
Notifications
You must be signed in to change notification settings - Fork 523
/
make-pdf-embedded.py
133 lines (113 loc) · 5.27 KB
/
make-pdf-embedded.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
#!/usr/bin/python
__description__ = 'tool to create a PDF document with an embedded file'
__author__ = 'Didier Stevens'
__version__ = '0.5.1'
__date__ = '2017/04/23'
"""
Source code put in public domain by Didier Stevens, no Copyright
https://DidierStevens.com
Use at your own risk
History:
2008/05/18: V0.1
2008/05/19: Refactoring
2008/05/23: Refactoring
2008/05/27: Refactoring
2008/06/27: V0.2, Refactoring, options, cleanup
2008/11/09: V0.3, added autostart and button
2009/06/15: V0.4.0: added stego
2011/07/01: V0.5.0: added support for Python 3
2017/04/23: V0.5.1: added option -n
Todo:
"""
import mPDF
import optparse
# CIC: Call If Callable
def CIC(expression):
if callable(expression):
return expression()
else:
return expression
# IFF: IF Function
def IFF(expression, valueTrue, valueFalse):
if expression:
return CIC(valueTrue)
else:
return CIC(valueFalse)
def ReadBinaryFile(name):
"""Read a binary file and return the content, return None if error occured
"""
try:
fBinary = open(name, 'rb')
except:
return None
try:
content = fBinary.read()
except:
return None
finally:
fBinary.close()
return content
def CreatePDFWithEmbeddedFile(pdfFileName, embeddedFileName, embeddedFileContent, filters, nobinary, autoopen, button, stego, text):
"""Create a PDF document with an embedded file
"""
oPDF = mPDF.cPDF(pdfFileName)
oPDF.header()
if not nobinary:
oPDF.binary()
if stego:
embeddedFiles = 'Embeddedfiles'
else:
embeddedFiles = 'EmbeddedFiles'
if autoopen:
openAction = ' /OpenAction 9 0 R\n'
else:
openAction = ''
oPDF.indirectobject(1, 0, '<<\n /Type /Catalog\n /Outlines 2 0 R\n /Pages 3 0 R\n /Names << /%s << /Names [(%s) 7 0 R] >> >>\n%s>>' % (embeddedFiles, embeddedFileName, openAction))
oPDF.indirectobject(2, 0, '<<\n /Type /Outlines\n /Count 0\n>>')
oPDF.indirectobject(3, 0, '<<\n /Type /Pages\n /Kids [4 0 R]\n /Count 1\n>>')
if button:
annots = ' /Annots [10 0 R]\n'
else:
annots = ''
oPDF.indirectobject(4, 0, '<<\n /Type /Page\n /Parent 3 0 R\n /MediaBox [0 0 612 792]\n /Contents 5 0 R\n /Resources <<\n /ProcSet [/PDF /Text]\n /Font << /F1 6 0 R >>\n >>\n%s>>' % annots)
if text == '':
text = 'This PDF document embeds file %s' % embeddedFileName
textCommands = '/F1 12 Tf 70 700 Td 15 TL (%s) Tj' % text
if button:
textCommands += " () ' () ' (Click inside the rectangle to save %s to a temporary folder and launch it.) ' () ' (Click here) '" % embeddedFileName
oPDF.stream(5, 0, 'BT %s ET' % textCommands)
oPDF.indirectobject(6, 0, '<<\n /Type /Font\n /Subtype /Type1\n /Name /F1\n /BaseFont /Helvetica\n /Encoding /MacRomanEncoding\n>>')
oPDF.indirectobject(7, 0, '<<\n /Type /Filespec\n /F (%s)\n /EF << /F 8 0 R >>\n>>' % embeddedFileName)
oPDF.stream2(8, 0, embeddedFileContent, '/Type /EmbeddedFile', filters)
if autoopen or button:
oPDF.indirectobject(9, 0, '<<\n /Type /Action\n /S /JavaScript\n /JS (this.exportDataObject({ cName: "%s", nLaunch: 2 });)\n>>' % embeddedFileName)
if button:
oPDF.indirectobject(10, 0, '<<\n /Type /Annot\n /Subtype /Link\n /Rect [65 620 130 640]\n /Border [16 16 1]\n /A 9 0 R\n>>')
oPDF.xrefAndTrailer("1 0 R")
def Main():
oParser = optparse.OptionParser(usage='usage: %prog [options] file-to-embed pdf-file', version='%prog ' + __version__)
oParser.add_option('-f', '--filters', default='f', help='filters to apply, f for FlateDecode (default), h for ASCIIHexDecode')
oParser.add_option('-t', '--nobinary', action='store_true', default=False, help="don't add the comment for binary format")
oParser.add_option('-a', '--autoopen', action='store_true', default=False, help='open the embedded file automatically when the PDF is opened')
oParser.add_option('-b', '--button', action='store_true', default=False, help='add a "button" to launch the embedded file')
oParser.add_option('-s', '--stego', action='store_true', default=False, help='"hide" the embedded file by replacing /EmbeddedFiles with /Embeddedfiles')
oParser.add_option('-m', '--message', default='', help='text to display in the PDF document')
oParser.add_option('-n', '--name', default='', help='filename to use in the PDF objects (by default same as file-to-embed name)')
(options, args) = oParser.parse_args()
if len(args) != 2:
oParser.print_help()
print('')
print(' %s' % __description__)
print(' Source code put in the public domain by Didier Stevens, no Copyright')
print(' Use at your own risk')
print(' https://DidierStevens.com')
else:
embeddedFileName = args[0]
pdfFileName = args[1]
embeddedFileContent = ReadBinaryFile(embeddedFileName)
if embeddedFileContent == None:
print('Error opening/reading file %s' % embeddedFileName)
else:
CreatePDFWithEmbeddedFile(pdfFileName, IFF(options.name == '', embeddedFileName, options.name), embeddedFileContent, options.filters, options.nobinary, options.autoopen, options.button, options.stego, options.message)
if __name__ == '__main__':
Main()