How it works

• You take just one set of images for each language for iPhone, iPad, Android Phone, Android Tablet.
• Run my python script python screens.py to prepare all the required sets of images.
• Receive all required and ready to publish to App Store And Google play preview images.

The python script

from PIL import Image, ImageOps
import os

print('Started')
sources_dir = "test/sources"
results_dir = "test/results"
bg_path = 'test/bg1.jpg'

resolutions =  { "iphone": [
                    (2778, 1284), (2208, 1242)
                  ],
                  "ipad":  [
                    (2732, 2048)
                  ] 
                }

def listdir(path):
  return [f for f in os.listdir(path) if not f.startswith('.')]

def save_screenshot(img, path, file_name):
  try:
    os.makedirs(path)
  except IOError:
    pass
  img.save(f"{path}/{file_name}")
 

for platform in listdir(sources_dir):
  platform_dir = f"{sources_dir}/{platform}"
  lc_folders = listdir(platform_dir)
  print(f"Performing {platform}")
  for lc in lc_folders:
    images_dir = f"{platform_dir}/{lc}"
    print(f"reading images in {images_dir}")
    images = listdir(images_dir)
    for image in images: 
      f = f"{images_dir}/{image}"
      i = 0
      for height, width  in resolutions[platform]:
        try:
          screenshot = Image.open(f)
          bg =  Image.open(bg_path)
          fitted =  ImageOps.contain(screenshot, (width, height))
          fwidth, fheight = fitted.size
          processed_image = Image.new('RGBA', (width, height), color=(232, 106, 28))
          processed_image.paste(bg)
          processed_image.paste(fitted, (int(width/2 - fwidth/2), int(height/2 - fheight/2)))
          save_screenshot(processed_image, f"{results_dir}/{platform}/{lc}/{height}x{width}/", file_name=f"{platform}_{lc}_{height}x{width}_{image}")
          i += 1
        except IOError:
          print(f"Error in processing")
print('Finished')