java利用poi 把ppt转化为图片,

导入jar包：

poi-3.8.jar

poi-ooxml-3.9.jar

poi-scratchpad-3.8.jar

代码：

 package test4;

 import java.awt.Dimension;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;

 import org.apache.poi.hslf.model.TextRun;
 import org.apache.poi.hslf.usermodel.RichTextRun;
 import org.apache.poi.hslf.usermodel.SlideShow;

 import java.awt.Color;
 import java.awt.Graphics2D;
 import java.awt.geom.Rectangle2D;
 import java.awt.image.BufferedImage;

     public class PptToJpg_poi {
         public static void main(String[] args) {
             // 读入PPT文件
             File file = new File("C:\\Users\\Administrator\\Desktop\\pptToJpg\\test8.pptx");
             doPPTtoImage(file);
         }

         public static boolean doPPTtoImage(File file) {
             boolean isppt = checkFile(file);
             if (!isppt) {
                 System.out.println("The image you specify don't exit!");
                 return false;
             }
             try {
                 FileInputStream is = new FileInputStream(file);
                 SlideShow ppt = new SlideShow(is);
                 is.close();
                 Dimension pgsize = ppt.getPageSize();
                 org.apache.poi.hslf.model.Slide[] slide = ppt.getSlides();
                 for (int i = 0; i < slide.length; i++) {
                     TextRun[] truns = slide[i].getTextRuns();
                     for (int k = 0; k < truns.length; k++) {
                         RichTextRun[] rtruns = truns[k].getRichTextRuns();
                         for (int l = 0; l < rtruns.length; l++) {
                             rtruns[l].setFontIndex(1);
                             rtruns[l].setFontName("宋体");
                         }
                     }
                     BufferedImage img = new BufferedImage(pgsize.width, pgsize.height,
                     BufferedImage.TYPE_INT_RGB);
                     Graphics2D graphics = img.createGraphics();
                     graphics.setPaint(Color.BLUE);
                     graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
                     slide[i].draw(graphics);
                     // 这里设置图片的存放路径和图片的格式(jpeg,png,bmp等等),注意生成文件路径
                     File path = new File("C:/Users/Administrator/Desktop/pptToJpg/images");
                     if (!path.exists()) {
                         path.mkdir();
                     }
                     // 可测试多种图片格式
 //                    FileOutputStream out = new FileOutputStream(path + "/" + (i + 1) + ".jpg");
 //                    javax.imageio.ImageIO.write(img, "jpeg", out);
                     FileOutputStream out = new FileOutputStream(path + "/" + (i + 1) + ".jpg");
                     javax.imageio.ImageIO.write(img, "png", out);
                     out.close();
                 }
                 System.out.println("success!!");
                 return true;
             } catch (FileNotFoundException e) {
                 System.out.println(e);
             } catch (IOException e) {

             }
             return false;
         }

         // function 检查文件是否为PPT
         public static boolean checkFile(File file) {
             boolean isppt = false;
             String filename = file.getName();
             String suffixname = null;
             if (filename != null && filename.indexOf(".") != -1) {
                 suffixname = filename.substring(filename.lastIndexOf("."));
                 if (suffixname.equals(".ppt") || suffixname.equals(".pptx")) {
                     isppt = true;
                 }
                 return isppt;
             } else {
                 return isppt;
             }
         }

 }

亲测有效