java实现PPT转化为PDF

package com.zzk.cn; 
 
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 java.awt.Color; 
import java.awt.Dimension; 
import java.awt.Graphics2D; 
import java.awt.geom.Rectangle2D; 
import java.awt.image.BufferedImage; 
import org.apache.poi.hslf.model.TextRun; 
import org.apache.poi.hslf.record.Slide; 
import org.apache.poi.hslf.usermodel.RichTextRun; 
import org.apache.poi.hslf.usermodel.SlideShow; 
 
public class PPTtoImage { 
  public static void main(String[] args) { 
    // 读入PPT文件 
    File file = new File("D:/书本JVM总结7-9.ppt"); 
    doPPTtoImage(file); 
  } 
 
  public static boolean doPPTtoImage(File file) { 
    boolean isppt = checkFile(file); 
    if (!isppt) { 
      System.out.println("你指定的文件不是ppt文档!"); 
      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++) { 
        System.out.print("第" + i + "页。"); 
        if (slide[i].getNotesSheet() != null 
            && slide[i].getNotesSheet().getTextRuns() != null) { 
          // 获取第一个备注 
          System.out.println("备注：" 
              + slide[i].getNotesSheet().getTextRuns()[0] 
                  .getText()); 
        } 
        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"); 
            // 获取文本列表 
            System.out.println(rtruns[l].getText()); 
          } 
        } 
        BufferedImage img = new BufferedImage(pgsize.width, 
            pgsize.height, BufferedImage.TYPE_INT_RGB); 
        Graphics2D graphics = img.createGraphics(); 
        graphics.setPaint(Color.white); 
        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 
        FileOutputStream out = new FileOutputStream("D:/testImage/pict_" 
            + (i + 1) + ".jpeg"); 
        javax.imageio.ImageIO.write(img, "jpeg", out); 
        out.close(); 
      } 
      System.out.println("ok"); 
      return true; 
    } catch (FileNotFoundException e) { 
      System.out.println(e); 
    } catch (IOException e) { 
      e.printStackTrace(); 
    } 
    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.indexOf(".")); 
      if (suffixname.equals(".ppt")) { 
        isppt = true; 
      } 
      return isppt; 
    } else { 
      return isppt; 
    } 
  } 
} 

package com.zzk.cn; 
 
import java.io.FileOutputStream; 
import java.io.IOException; 
 
import com.itextpdf.text.Document; 
import com.itextpdf.text.DocumentException; 
import com.itextpdf.text.Image; 
import com.itextpdf.text.pdf.PdfWriter; 
 
public class ImagetoPDF { 
   
  public static void main(String[] args) { 
     
    System.out.println("Chapter 6 example 3: using a relative path for HTML"); 
     
    // step 1: creation of a document-object 
    Document document = new Document(); 
     
    try { 
       
      // step 2: 
      // we create a writer that listens to the document 
      // and directs a PDF-stream to a file 
       
      PdfWriter.getInstance(document, new FileOutputStream("D:/测试图片.pdf")); 
     // HtmlWriter writer = HtmlWriter.getInstance(document, new FileOutputStream("Chap0603.html")); 
       
     // writer.setImagepath("../../images/kerstmis/"); 
       
      // step 3: we open the document 
      document.open(); 
       
      for(int i=1;i<=7;i++) { 
      // step 4: we add content 
      Image jpg = Image.getInstance("D:/testImage/pict_"+i+".jpeg"); 
      jpg.scalePercent(50); 
      document.add(jpg); 
      } 
       
    } 
    catch(DocumentException de) { 
      System.err.println(de.getMessage()); 
    } 
    catch(IOException ioe) { 
      System.err.println(ioe.getMessage()); 
    } 
     
    // step 5: we close the document 
    document.close(); 
  } 
}