您可以将演示文稿转换为图像文件.以下程序显示了如何进行此操作.
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("pptToImage.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(); }}将上述Java代码保存为 PpttoPNG.java ，然后编译并执行它来自命令提示符，如下所示 :
$javac PpttoPNG.java$java PpttoPNG
它将编译并执行以生成以下输出 :
Image created successfully
以下快照显示了作为输入和减号的演示文稿;
以下是在指定位置创建的图像的快照.
