Create pptx from images

auto-pptx-maker.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Tue May 20 10:18:24 2025

@author: alankar
install module python-pptx
"""

from pptx import Presentation
from pptx.util import Inches, Pt
from PIL import Image
import os

# Folder containing PNG images
image_folder = "/Users/alankard/Downloads/output-c100,m1.496,T4e4,t0.20,r70.671/temperature"
output_pptx = f"{image_folder}/slides_from_pngs.pptx"

# Get sorted list of PNG files
image_files = sorted([f for f in os.listdir(image_folder) if f.lower().endswith(".png")])

# Open the first image to get dimensions
first_image_path = os.path.join(image_folder, image_files[0])
with Image.open(first_image_path) as img:
    width_px, height_px = img.size
    dpi = img.info.get("dpi", (96, 96))[0]  # Default to 96 if not specified
    width_in = width_px / dpi
    height_in = height_px / dpi

# Convert inches to EMU (English Metric Units) used by pptx
from pptx.util import Inches
slide_width = Inches(width_in)
slide_height = Inches(height_in)

# Create a presentation with custom dimensions
prs = Presentation()
prs.slide_width = slide_width
prs.slide_height = slide_height

# Add each image as a full-slide image
for image_file in image_files:
    img_path = os.path.join(image_folder, image_file)
    slide = prs.slides.add_slide(prs.slide_layouts[6])  # blank slide
    slide.shapes.add_picture(img_path, 0, 0, width=slide_width, height=slide_height)

# Save the presentation
prs.save(output_pptx)
print(f"Presentation saved as {output_pptx}")