java实现PPT转化为PDF

jacob的方法，足可以解决这个问题，但是我既然以前曾经做过报表，就想尝试不同的方法。

jacob是一座连接java和微软的桥，所有的解析由微软解析。poi是没有微软解析的那么原汁原味的，所以如果要求高的话，还是使用jacob。

大致思路很简单，将ppt先转化为图片，然后将图片写入pdf。转化图片是用poi，操作pdf使用itex。不过这个方法的bug就是转化图片的poi效果不是很好。

导入的包分别是：itextpdf-5.1.3.jar，poi-3.8-20120326.jar，poi-scratchpad-3.8-20120326.jar。

然后贴代码了：

代码没有进行参数统一，写两个方法：

				?

									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; 

									    } 

									  } 

									}

第二段代码：

				?

									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(); 

									  } 

									}