Unhandled ZeroDivisionError in _extended_image_frombytes

[williamgagnonpoka]

When extracting an image that contains no data, a ZeroDivisionError is thrown in the except block of the _extended_image_frombytes method.

This exception should be handled.

Environment

$ python -m platform
macOS-14.5-arm64-arm-64bit

$ python -c "import pypdf;print(pypdf._debug_versions)"
pypdf==4.3.1, crypt_provider=('cryptography', '43.0.0'), PIL=10.4.0

Code + PDF

This is a minimal, complete example that shows the issue:

for image in page.images:
    image.name = str(page.page_number) + "/" + image.name
    images.append(image)

pdf_with_one_pixel_image.pdf

Traceback

This is the complete traceback I see:

mode = 'RGB', size = (1, 1), data = b''

    def _extended_image_frombytes(
        mode: str, size: Tuple[int, int], data: bytes
    ) -> Image.Image:
        try:
            img = Image.frombytes(mode, size, data)
        except ValueError as exc:
            nb_pix = size[0] * size[1]
            if len(data) % nb_pix != 0:
                raise exc
>           k = nb_pix * len(mode) / len(data)
E           ZeroDivisionError: division by zero

[stefan6419846]

Thanks for the report. Feel free to open a corresponding PR.