python 文件夹下的图片转PDF

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from PIL import Image import os     def rea(path, pdf_name):     file_list = os.listdir(path)     pic_name = []     im_list = []     for x in file_list:         if "jpg" in x or 'png' in x or 'jpeg' in x:             pic_name.append(x)       pic_name.sort()     new_pic = []       for x in pic_name:         if "jpg" in x:             new_pic.append(x)       for x in pic_name:         if "png" in x:             new_pic.append(x)       print("hec", new_pic)       im1 = Image.open(os.path.join(path, new_pic[0]))     new_pic.pop(0)     for i in new_pic:         img = Image.open(os.path.join(path, i))         # im_list.append(Image.open(i))         if img.mode == "RGBA":             img = img.convert('RGB')             im_list.append(img)         else:             im_list.append(img)     im1.save(pdf_name, "PDF", resolution=100.0, save_all=True, append_images=im_list)     print("输出文件名称：", pdf_name)     if __name__ == '__main__':       pdf_name = '3D2.pdf'     mypath=r"F:\kktemp\a"     if ".pdf" in pdf_name:         rea(mypath, pdf_name=pdf_name)     else:         rea(mypath, pdf_name="{}.pdf".format(pdf_name))