blob: 2493663f186206b91f163f72a9210c6e9837147d (
plain)
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
|
# -*- coding: utf-8 -*-
from .polyglotpdfzip import PolyglotPdfZip
'''
|-------------------------------| -
|--------- PDF Header ----------K1 | J1
|-------------------------------| -
|----- PDF OBJ 1 = ZIP Data ----K2 |
|-------------------------------| -
|---- Original PDF Ojbects -----K3 |
|-------------------------------| |
|---------- Xref Table ---------| |
|-------------------------------K4 | J2
|----------- Trailer -----------| |
|-------------------------------| -
|-------- End Zip Data ---------| |
|-------------------------------| |
'''
class PolyglotZipPdf(PolyglotPdfZip):
def generate(self):
k2_stream = self.zip.buffer[:self.zip.end_of_data]
size_k2_stream = len(k2_stream)
self.pdf.insert_new_obj_stream_at_start(k2_stream)
offset_k2_stream = self.pdf.get_first_stream_offset()
pdf_buffer = self.pdf.get_build_buffer()
j1 = pdf_buffer[0:offset_k2_stream]
j2 = pdf_buffer[offset_k2_stream + size_k2_stream:]
self.zip.add_data_to_file(j1, j2, True)
self.buffer = self.zip.buffer
|
