单码误差PyPdf

Question

我尝试使用requests库下载几个pdfs，并使用pypdf将它们合并在一起。一般来说，这是很好的工作，但对于某些pdfs，我只是得到一个错误。

MWE.py

import requests
from pyPdf import PdfFileWriter, PdfFileReader
from StringIO import StringIO


input = PdfFileReader(StringIO(response.content))
input.decrypt("")
output = PdfFileWriter()
output.addPage(input.getPage(0))

outputStream = file("document-output.pdf", "wb")
output.write(outputStream)
outputStream.close()

session.close()

错误

Traceback (most recent call last):
  File "mwe.py", line 21, in <module>
    input.decrypt("")
  File "/usr/local/lib/python2.7/dist-packages/pyPdf/pdf.py", line 894, in decrypt
    return self._decrypt(password)
  File "/usr/local/lib/python2.7/dist-packages/pyPdf/pdf.py", line 904, in _decrypt
    user_password, key = self._authenticateUserPassword(password)
  File "/usr/local/lib/python2.7/dist-packages/pyPdf/pdf.py", line 945, in _authenticateUserPassword
    encrypt.get("/EncryptMetadata", BooleanObject(False)).getObject())
  File "/usr/local/lib/python2.7/dist-packages/pyPdf/pdf.py", line 1818, in _alg35
    key = _alg32(password, rev, keylen, owner_entry, p_entry, id1_entry)
  File "/usr/local/lib/python2.7/dist-packages/pyPdf/pdf.py", line 1729, in _alg32
    m.update(id1_entry)
UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-1: ordinal not in range(128)

对于跟踪，我从一个文件中读取输入，但在本例中我认为这并不重要。

我发现了一些与这个问题有关的问题，但我无法解决我的具体问题。

Answer 1

好的，我发现这似乎是pyPdf (1.13) https://github.com/mstamy2/PyPDF2/issues/51中的一个bug

相反，使用PyPDF2 (1.26.0)可以像预期的那样工作。