useful to run against a media directory to save space... (make sure to experiment with quality kwarg!)

recursively_compress_image.py

import os
from PIL import Image


def compress_png_in_place(folder_path):
    """
    Recursively finds all PNG files in the specified directory, compresses them, and saves them in place.

    Args:
    folder_path (str): The path to the directory where to start searching and compressing PNG files.
    """
    for root, dirs, files in os.walk(folder_path):
        for file in files:
            if file.lower().endswith((".png", ".jpeg", ".jpg")):
                full_path = os.path.join(root, file)
                print(f"Compressing {full_path}", os.path.getsize(full_path))
                try:
                    compress_image(full_path)
                except Exception as e:
                    print(f"Failed to compress {full_path}: {e}")
                    continue
                print("Compressed =", os.path.getsize(full_path))


def compress_image(image_path):
    """
    Compresses a PNG image and overwrites the original image file.

    Args:
    image_path (str): The path to the image to be compressed.
    """
    with Image.open(image_path) as img:
        img.save(image_path, optimize=True, quality=75)


if __name__ == "__main__":
    folder_path = (
        "/opt/app/media"
    )
    all_png_files = compress_png_in_place(folder_path)