import PyPDF2
import os
import sys

# Recupera a string passada como argumento
string_argument = sys.argv[1]

input_folder_path = string_argument

def convert_pdf_to_v1_4(input_path, output_path):
    # Open the input PDF file
    with open(input_path, 'rb') as input_file:
        # Create a PDF reader object
        reader = PyPDF2.PdfReader(input_file)

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

        # Iterate over each page in the input PDF
        for page_num in range(len(reader.pages)):
            # Get the page at the specified index
            page = reader.pages[page_num]

            # Add the page to the writer object
            writer.add_page(page)

        # Open the output PDF file
        with open(output_path, 'wb') as output_file:
            # Set the PDF version in the output file's trailer
            writer._root_object.update({
                PyPDF2.generic.NameObject('/Version'): PyPDF2.generic.create_string_object('(1.4)')
            })

            # Write the modified PDF to the output file
            writer.write(output_file)

# # Specify the input and output file paths
# input_file_path = '10257396551/0cdc03272c0f1cfecb5462da9b4d65ae29ee196a.pdf'
# output_file_path = '10257396551/0cdc03272c0f1cfecb5462da9b4d65ae29ee196a.pdf'

# # Convert the PDF to version 1.4
# convert_pdf_to_v1_4(input_file_path, output_file_path)

for filename in os.listdir(input_folder_path):
     if filename.lower().endswith('.pdf'):
        input_file_path = os.path.join(input_folder_path, filename)
        output_file_path = os.path.join(input_folder_path, filename)
        print(input_file_path)
        convert_pdf_to_v1_4(input_file_path, output_file_path)