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