PyPDF2 PdfFileWriter沒有屬性流

Question

我正在嘗試將pdf分成其頁面並將每個頁面保存為新的pdf。 我從前一個問題嘗試過這個方法沒有成功，pypdf2從這里拆分示例沒有成功。 編輯：我可以在我的文件中看到它成功寫入第一頁，然后創建第二頁pdf但是為空。

這是我試圖運行的代碼：

from PyPDF2 import PdfFileWriter, PdfFileReader

inputpdf = PdfFileReader(open("my_pdf.pdf", "rb"))

for i in range(inputpdf.numPages):
    output = PdfFileWriter()
    output.addPage(inputpdf.getPage(i))
    with open("document-page%s.pdf" % i, "wb") as outputStream:
        output.write(outputStream)

這是完整的錯誤消息：

Traceback (most recent call last):
  File "pdf_functions.py", line 9, in <module>
    output.write(outputStream)
  File "/usr/local/lib/python3.4/dist-packages/PyPDF2/pdf.py", line 482, in write
    self._sweepIndirectReferences(externalReferenceMap, self._root)
  File "/usr/local/lib/python3.4/dist-packages/PyPDF2/pdf.py", line 572, in _sweepIndirectReferences
    self._sweepIndirectReferences(externMap, realdata)
  File "/usr/local/lib/python3.4/dist-packages/PyPDF2/pdf.py", line 548, in _sweepIndirectReferences
    value = self._sweepIndirectReferences(externMap, value)
  File "/usr/local/lib/python3.4/dist-packages/PyPDF2/pdf.py", line 572, in _sweepIndirectReferences
    self._sweepIndirectReferences(externMap, realdata)
  File "/usr/local/lib/python3.4/dist-packages/PyPDF2/pdf.py", line 548, in _sweepIndirectReferences
    value = self._sweepIndirectReferences(externMap, value)
  File "/usr/local/lib/python3.4/dist-packages/PyPDF2/pdf.py", line 557, in _sweepIndirectReferences
    value = self._sweepIndirectReferences(externMap, data[i])
  File "/usr/local/lib/python3.4/dist-packages/PyPDF2/pdf.py", line 572, in _sweepIndirectReferences
    self._sweepIndirectReferences(externMap, realdata)
  File "/usr/local/lib/python3.4/dist-packages/PyPDF2/pdf.py", line 548, in _sweepIndirectReferences
    value = self._sweepIndirectReferences(externMap, value)
  File "/usr/local/lib/python3.4/dist-packages/PyPDF2/pdf.py", line 575, in _sweepIndirectReferences
    if data.pdf.stream.closed:
AttributeError: 'PdfFileWriter' object has no attribute 'stream'

我也試過這個，並確認我確實可以提取一個頁面。

from PyPDF2 import PdfFileWriter, PdfFileReader
inputpdf = PdfFileReader(open("/home/ubuntu/inputs/cityshape/form5.pdf", "rb"))

#for i in range(inputpdf.numPages):
output = PdfFileWriter()
output.addPage(inputpdf.getPage(2))
with open("document-page2.pdf", "wb") as outputStream:
    output.write(outputStream)

Answer 1

這樣的事情我也經歷過。

我能夠通過在循環內移動以下行來解決它：

inputpdf = PdfFileReader(open("/home/ubuntu/inputs/cityshape/form5.pdf", "rb"))

我相信某些版本的PyPDF2存在某種錯誤，當你調用PdfFileWriter.write方法時，它會與PdfFileReader實例混淆。 通過在每次寫入后重新創建PdfFileReader實例，它會繞過此錯誤。

以下代碼應該有效（未經測試）：

from PyPDF2 import PdfFileWriter, PdfFileReader

pdf_in_file = open("my_pdf.pdf",'rb')

inputpdf = PdfFileReader(pdf_in_file)
pages_no = inputpdf.numPages

for i in range(pages_no):
    inputpdf = PdfFileReader(pdf_in_file)
    output = PdfFileWriter()
    output.addPage(inputpdf.getPage(i))
    with open("document-page%s.pdf" % i, "wb") as outputStream:
        output.write(outputStream)

pdf_in_file.close()