python日常应用——多页图片合并成pdf python os库

#!/usr/bin/env python
# encoding: utf-8
from PIL import Image
import os

def merge(pdf_name):
  # 读取和排序
  file_list = os.listdir('MergePDF/')
  pic_name = []
  im_list = []
  for x in file_list:
    pic_name.append(x)
  pic_name.sort()
  new_pic = []
  for x in pic_name:
    new_pic.append(x)

  im1 = Image.open('MergePDF/' + new_pic[0])
  new_pic.pop(0) # 封面
  for i in new_pic:
    img = Image.open('MergePDF/' + i)
    img = img.convert('RGB')
    im_list.append(Image.open('MergePDF/' + i))

  im1.save(pdf_name, "PDF", resolution=100.0, save_all=True, append_images=im_list)


if __name__ == '__main__':
  merge("New.pdf")