title: EOF marker not found while use PyPDF2 merge pdf file in python
body: <p>When I use the following code</p>
  <pre class="lang-py prettyprint-override"><code>from PyPDF2 import PdfFileMerger
  
  merge = PdfFileMerger()
  
  for newFile in nlst:
      merge.append(newFile)
  merge.write(&quot;newFile.pdf&quot;)
  </code></pre>
  <p>Something happened as following:</p>
  <pre><code>raise utils.PdfReadError(&quot;EOF marker not found&quot;)
  
  PyPDF2.utils.PdfReadError: EOF marker not found
  </code></pre>
  <p>Anybody could tell me what happened?</p>