Java使用icepdf将pdf文件按页转成图片

<dependency>

  <groupid>org.icepdf.os</groupid>

  <artifactid>icepdf-core</artifactid>

  <version> 6.1 . 2 </version>

  <exclusions>

   <exclusion>

    <groupid>javax.media</groupid>

    <artifactid>jai-core</artifactid>

   </exclusion>

  </exclusions>

</dependency>

import java.awt.image.bufferedimage;

import java.io.file;

import java.io.fileoutputstream;

import java.io.ioexception;

import java.text.decimalformat;

import java.util.arraylist;

import java.util.iterator;

import java.util.list;

import java.util.map;

import javax.imageio.iioimage;

import javax.imageio.imageio;

import javax.imageio.imagewriter;

import javax.imageio.stream.imageoutputstream;

import org.apache测试数据mons.logging.logfactory;

import org.icepdf.core.exceptions.pdfexception;

import org.icepdf.core.exceptions.pdfsecurityexception;

import org.icepdf.core.pobjects.document;

import org.icepdf.core.pobjects.page;

import org.icepdf.core.util.graphicsrenderinghints;

public class test20160929 {

  public static final string filetype_jpg = "jpg" ;

  /**

   *

   * 将指定的pdf文件转换为指定路径的图片

   *

   * @param filepath 原文件路径，例如d:/test/test.pdf

   *

   * @param imagepath 图片生成路径，例如 d:/test/

   *

   * @param zoom 缩略图显示倍数，1表示不缩放，0.3则缩小到30%

   *

   */

  public static void tranfer(string filepath, string imagepath, float zoom) throws pdfexception, pdfsecurityexception, ioexception {

   document document = null ;

   float rotation = 0f;

   document = new document();

   document.setfile(filepath);

   int maxpages = document.getpagetree().getnumberofpages();

   for ( int i = 0 ; i < maxpages; i++) {

    bufferedimage img = (bufferedimage) document.getpageimage(i, graphicsrenderinghints.screen, page.boundary_cropbox, rotation, zoom);

    iterator iter = imageio.getimagewritersbysuffix(filetype_jpg);

    imagewriter writer = (imagewriter) iter.next();

    file outfile = new file(imagepath + new file(filepath).getname() + "_" + new decimalformat( "000" ).format(i) + "." + filetype_jpg);

    fileoutputstream out = new fileoutputstream(outfile);

    imageoutputstream outimage = imageio.createimageoutputstream(out);

    writer.setoutput(outimage);

    writer.write( new iioimage(img, null , null ));

   }

   system.out.println( "转换完成" );

  }

  public static void main(string[] args) throws pdfexception, pdfsecurityexception, ioexception {

   tranfer( "d:/test/test.pdf" , "d:/test/" , 1 );

  }

}