bug/windows reopen temp file (pdf hi_res)

[KristianMischke]

Describe the bug
Same issue as Unstructured-IO/unstructured-inference#303, I couldn't find an equivalent ticket on this project. Temp files run into an issue in Windows when they are opened/closed within the scope of the NamedTemporaryFile()

In line:

unstructured/unstructured/partition/pdf_image/ocr.py

Line 79 in d3a404c

with tempfile.NamedTemporaryFile() as tmp_file:

is a temp file created to pass as filename to process_file_with_ocr -> pdf2image.convert_from_path which then invokes pdfinfo on the tempfile yielding an error like

pdf2image.exceptions.PDFPageCountError: Unable to get page count.
I/O Error: Couldn't open file <temp file path here>: No error.

To Reproduce
On Windows

Note: first the issue outlined in Unstructured-IO/unstructured-inference#303 will occur, but once that is fixed (e.g. by applying Unstructured-IO/unstructured-inference#323) it will error on the ocr code as mentioned above

import tempfile

# print operating system name
import os
print(os.name)


# Create a temporary file
with tempfile.NamedTemporaryFile() as tmp_file:
    # Write some data to the file
    tmp_file.write(b'Hello, world!')
    tmp_file.flush()  # Flush the buffer to make sure data is written

    # Get the name of the file
    file_name = tmp_file.name

    # Since the file is closed after the with block, we need to open it again for reading
    with open(file_name, 'r') as file:
        # Read the data from the file
        content = file.read()
        print("Content of the temp file:", content)

Expected behavior
Expected not to error, and to be able to support tempfiles on Windows

[MthwRobinson]

Thanks @KristianMischke ! We'll take a look at this.

[scanny]

Fixed by #3395.