A way to reszie images and save them to one pdf file using Python package Pillow (PIL fork)

resize_img_save_to_pdf.py

from PIL import Image
from glob import glob

# assumed ".jpg" files
def resize_images(files, width, height):
    for f in files:
        img = Image.open(f).resize((width, height)) # Note: this won't keep aspect ratio
        img.save(f.replace('.jpg', '_resized.jpg'))
        
def save_to_pdf(files, pdf_file_name):
    for i, f in enumerate(files):
        img = Image.open(f)
        to_append = True
        if i == 0:
            to_append = False
        img.save(pdf_file_name, format='pdf', append=to_append)
        
files = glob('*.jpg')

resize_images(files, 1000, 800)

save_to_pdf(files, 'mypdf.pdf')