PPTX to PNG image using Apache POI

pptx-to-png-with-apache-poi.java

import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFSlide;

import java.awt.*;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class Transcoder {

    public static void main(String args[]) throws IOException{

        //creating an empty presentation
        File file=new File("sample-ppt-for-converter.pptx");
        XMLSlideShow ppt = new XMLSlideShow(new FileInputStream(file));

        //getting the dimensions and size of the slide
        Dimension pgsize = ppt.getPageSize();
        java.util.List<XSLFSlide> slide = ppt.getSlides();

        for (int i = 0; i < slide.size(); i++) {
            BufferedImage img = new BufferedImage(pgsize.width, pgsize.height,BufferedImage.TYPE_INT_RGB);
            Graphics2D graphics = img.createGraphics();

            //clear the drawing area
            graphics.setPaint(Color.white);
            graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));

            //render
            slide.get(i).draw(graphics);

            //creating an image file as output
            FileOutputStream out = new FileOutputStream("ppt_image_" + i + ".png");
            javax.imageio.ImageIO.write(img, "png", out);
            System.out.println("Image successfully created");
            out.close();
        }
    }
}

Hi
How do you convert the .ppt to image , Please share the answer

You can try the code above, but I remember encountering a number of issues with Apache POI rendering slides.. but things may have changed since 2017 🤷‍♂️

We ended up using the Zamzar API (https://developers.zamzar.com/) which worked well for us.