PDF rotation using python

Question

After rotate scanned pdf using python it works just fine but after sending the pdf to third party the third party still detect the pdf as a 90 deg pdf is there any way to fix rotation and this problem

import PyPDF2
with open('input.pdf', 'rb') as file:
    # Create a PDF reader object
    reader = PyPDF2.PdfReader(file)

    # Create a PDF writer object
    writer = PyPDF2.PdfWriter()

    # Rotate each page by 90 degrees and add it to the writer object
    for page_num in range(len(reader.pages)):
        page = reader.pages[page_num]
        page.rotate(90)  # Rotate clockwise with negative angle
        writer.add_metadata({
            '/Rotate': '0'  # Set the desired rotation value (adjust as needed)
        })
        writer.add_page(page)

    # Write the rotated pages to a new PDF file
    with open('offffutput.pdf', 'wb') as output_file:
        writer.write(output_file)