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