Python script to convert JFIF images to JPEG - useful for images generated by Image Creator from Microsoft Bing

jfif_to_jpg.py

# Prerequisites:
# 1. Python 3.x
# 2. Pillow library (PIL fork)
#   pip install pillow

import os
import sys
from PIL import Image

dir_path = None
total_freed_space = 0
num_deleted_files = 0

if len(sys.argv) > 1:
    dir_path = sys.argv[1]
    if not os.path.isdir(dir_path):
        raise Exception("Specified argument is not a folder or does not exist: {}".format(dir_path))
else:
    dir_path = os.getcwd()

print("Converting JFIF to JPG in dir: {}".format(dir_path))

files = os.listdir(dir_path)

for file in files:
  # Check if the file is a .jfif file
  if file.endswith('.jfif'):
      dest_name = file.rsplit('.', 1)[0] + '.jpg'
      print("Converting: {} => {}".format(file, dest_name))
      img = Image.open(os.path.join(dir_path, file))
      # Convert and save as .jpeg
      img.save(os.path.join(dir_path, dest_name), 'JPEG')