Python Script to Listen a folder for new file (Image) and add a watermark

watermark.py

from PIL import Image
import sys
import time
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

def watermark_photo(input_image_path,
                    output_image_path,
                    watermark_image_path):
    # Read image file
    base_image = Image.open(input_image_path)
    # Get sizes of image
    width, height = base_image.size
    # Get watermark image
    watermark = Image.open(watermark_image_path)
    # Resize Watermark image
    watermark = watermark.resize((150,150))
    # Position to place watermark
    position = (width - 150, height - 150)
    # Convert imaget to handle transparency
    transparent = Image.new('RGBA', (width, height), (0,0,0,0))
    transparent.paste(base_image, (0,0))
    # Add watermark to image
    transparent.paste(watermark, position, mask=watermark)
    # convert image back to RGB to save as JPG
    transparent = transparent.convert("RGB")
    # Save as JPG
    transparent.save(output_image_path)
    print(f"Watermark added on {output_image_path}")
 

class FileHandle(FileSystemEventHandler):
    def on_modified(self, event):
        pass
    def on_created(self,event):
        # On New file created
        path = str(event.src_path).replace(".\\", "")
        time.sleep(1)
        watermark_photo(path, path, 'logo.png')


if __name__ == "__main__":
    path = sys.argv[1] if len(sys.argv) > 1 else '.'
    event_handler = FileHandle()
    observer = Observer()
    observer.schedule(event_handler, path, recursive=True)
    observer.start()
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()
    observer.join()