image_merger.py

import sys
import os
import fnmatch
from PIL import Image

imageSource = os.path.join(
    "C:\\", "Users", "stern", "Google 드라이브", "기타", "Goodnotes4Export"
)
outputPath = os.path.join(
    "C:\\", "Users", "stern", "Google 드라이브", "기타", "output"
)
lastPage = len(fnmatch.filter(os.listdir(imageSource), "*.png"))
imageNames = list(map(lambda x: f"{imageSource}/{x}.png", range(1, int(lastPage))))

images = list(map(Image.open, imageNames))

lastImage = Image.open(f"{imageSource}/{lastPage}.png")

for idx, img in enumerate(images):
    width, height = img.size
    width_last, _ = lastImage.size

    original_name = f"{idx + 1}.png"
    out_image = Image.new("RGB", (width + width_last, height))
    out_name = f"{outputPath}/r{original_name}"

    out_image.paste(img, (0, 0))
    out_image.paste(lastImage, (width, 0))
    out_image.save(out_name)
    print(f"작업완료: {int(((idx + 1) / len(images)) * 100)}%")

print("모든 작업이 완료되었습니다.")
sys.exit()