import argparse
from PIL import Image
import os
from PyPDF2 import PdfFileReader, PdfFileWriter


def img_to_pdf(img_path, save_path):
    img_list = os.listdir(img_path)
    out_pdf = PdfFileWriter()
    sdfs = [os.path.join(img_path, i) for i in img_list]
    for f in sdfs:
        img = Image.open(f)
        fw = f.replace('.jpg', '.pdf')
        img.save(fw)
        out_pdf.appendPagesFromReader(PdfFileReader(
            open(fw, 'rb')))  # 也可拆这句为 sc_pdf=PdfFileReader(open(fw,'rb')); out_pdf.addPage(sc_pdf.getPage(0))
    out_pdf.write(open(save_path, 'wb'))


if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument('--img_path', type=str, default='./images')
    parser.add_argument('--save_path', type=str, default='./pdf_file')
    args = parser.parse_args()
    img_to_pdf(args.img_path, args.save_path)