A script can save ppt as jpgs and combine them into a single image

ppt2jpg.py

import os
import win32com.client
from PIL import Image

ppt_path = input('請輸入PPT檔案絕對路徑:')
long_sign = input('是否產生長圖(Y/N):')

def ppt2jpg():

    output_path = ppt_path
    ppt_app = win32com.client.Dispatch('PowerPoint.Application')
    ppt = ppt_app.Presentations.Open(ppt_path)  # 打開PPT軟體
    ppt.SaveAs(output_path, 17)  # 17是PPT轉成圖片*.jpg格式的數字
    ppt_app.Quit()  # 關閉PPT軟體

    if 'Y' == long_sign.upper():
        generate_long_image(output_path)  # 合併產生長圖

def generate_long_image(output_path):
    picture_path = output_path[:output_path.rfind('.')]
    last_dir = os.path.dirname(picture_path)  # 上一層級目錄

    # 獲取單張圖片
    ims = [Image.open(os.path.join(picture_path, fn)) for fn in os.listdir(picture_path)]
    width, height = ims[0].size  # 取第一張圖片的長寬尺寸
    long_canvas = Image.new(ims[1].mode, (width, height * len(ims)))  # 創建同樣寬度，n張圖片高度的空白圖片

    # 拼接圖片
    for i, image in enumerate(ims):
        long_canvas.paste(image, box=(0, i * height))

    long_canvas.save(os.path.join(last_dir, 'long-image.png'))  # 保存長圖
    print('長圖保存成功!')

ppt2jpg()