merge_pdf.py

from PyPDF4 import PdfFileReader, PdfFileWriter

def merge_pdfs(paths, output):
    pdf_writer = PdfFileWriter()

    for path in paths:
        pdf_reader = PdfFileReader(path)
        for page in range(pdf_reader.getNumPages()):
            # Add each page to the writer object
            pdf_writer.addPage(pdf_reader.getPage(page))

    # Write out the merged PDF
    with open(output, 'wb') as out:
        pdf_writer.write(out)

file1 = input("Enter the path of the first file: ")
file2 = input("Enter the path of the second file: ")
output = input("Enter the name of the output file: ")

if __name__ == '__main__':
    paths = [file1, file2]
    merge_pdfs(paths, output= output + ".pdf")