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How to convert the slides of a PPT into images in Java
Problem Description
How to convert the slides of a PPT into images.
Solution
Following is the program to convert the slides of a PPT into images.
import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics2D; 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; import org.apache.poi.xslf.usermodel.XMLSlideShow; import org.apache.poi.xslf.usermodel.XSLFSlide; public class PptToImage { public static void main(String args[]) throws IOException { //creating an empty presentation File file = new File("addingimage.pptx"); XMLSlideShow ppt = new XMLSlideShow(new FileInputStream(file)); //getting the dimensions and size of the slide Dimension pgsize = ppt.getPageSize(); XSLFSlide[] slide = ppt.getSlides(); BufferedImage img = null; for (int i = 0; i < slide.length; i++) { 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[i].draw(graphics); } //creating an image file as output FileOutputStream out = new FileOutputStream("ppt_image.png"); javax.imageio.ImageIO.write(img, "png", out); ppt.write(out); System.out.println("Image successfully created"); out.close(); } }
Input
Output
java_apache_poi_ppt
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