Can't open PDF file with PyPDF2

Question

I'm using Python 3.8.5. I'm trying to write a short script that concatenates PDF files and learning from this Stack Overflow question, I'm trying to use PyPDF2. Unfortunately, I can't seem to even create a PyPDF2.PdfFileReader instance without crashing.

My code looks like this:

import pathlib
import PyPDF2

pdf_path = pathlib.Path('1.pdf')
with pdf_path.open('rb') as pdf_file:
    reader = PyPDF2.PdfFileReader(pdf_file, strict=False)

When I try to run it, I get the following traceback:

Traceback (most recent call last):
  File "C:\...\pdf\open_pdf.py", line 6, in <module>
    reader = PyPDF2.PdfFileReader(pdf_file, strict=False)
  File "C:\...\.virtualenvs\pdf-j0HnXL2B\lib\site-packages\PyPDF2\pdf.py", line 1084, in __init__
    self.read(stream)
  File "C:\...\.virtualenvs\pdf-j0HnXL2B\lib\site-packages\PyPDF2\pdf.py", line 1883, in read
    stream.seek(-11, 1)
OSError: [Errno 22] Invalid argument

To help reproduce the problem, I created this GitHub repo with the above code and a sample PDF file.

What am I doing wrong?

Answer 1

It seems like your 1.pdf file fails validation, checked here: https://www.pdf-online.com/osa/validate.aspx

I tried with another pdf file of version 1.7 and it worked, so it's not about pdf version, you just have a bad 1.pdf file