app.py

import gradio as gr
from pptx import Presentation
from fpdf import FPDF
import tempfile
import os
from PIL import Image

def pptx_to_pdf(pptx_file):
    # Create a temporary directory to store intermediate images
    with tempfile.TemporaryDirectory() as tmpdirname:
        pdf = FPDF()
        
        # Load the PowerPoint file
        presentation = Presentation(pptx_file.name)
        
        for i, slide in enumerate(presentation.slides):
            # Save each slide as an image
            img_path = os.path.join(tmpdirname, f"slide_{i}.png")
            slide.shapes[0].image.save(img_path)

            # Add the image to the PDF
            pdf.add_page()
            pdf.image(img_path, 0, 0, 210, 297)  # A4 size (210mm x 297mm)

        # Save the PDF to a file
        pdf_output_path = os.path.join(tmpdirname, "output.pdf")
        pdf.output(pdf_output_path)

        return pdf_output_path

# Create a Gradio interface
iface = gr.Interface(
    fn=pptx_to_pdf,
    inputs=gr.File(file_types=[".pptx"]),
    outputs=gr.File(file_types=[".pdf"]),
    title="PPTX to PDF Converter",
    description="Upload a PowerPoint file to convert it to a PDF without watermarks."
)

# Launch the app
iface.launch()