package com.lyq.util;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import com.sun.pdfview.PDFFile;
import com.sun.pdfview.PDFPage;
public class PDF2IMG {
public void setup(String pdfPath) throws Exception {
File file = new File(pdfPath);
RandomAccessFile raf = new RandomAccessFile(file, "r");
FileChannel channel = raf.getChannel();
ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
PDFFile pdffile = new PDFFile(buf);
System.out.println("页数: " + pdffile.getNumPages());
for (int i = 1; i <= pdffile.getNumPages(); i++) {
// draw the first page to an image
PDFPage page = pdffile.getPage(i);
// get the width and height for the doc at the default zoom
Rectangle rect = new Rectangle(0, 0, (int) page.getBBox()
.getWidth(), (int) page.getBBox().getHeight());
// generate the image
Image img = page.getImage(rect.width, rect.height, // width &
// height
rect, // clip rect
null, // null for the ImageObserver
true, // fill background with white
true // block until drawing is done
);
BufferedImage tag = new BufferedImage(rect.width, rect.height,
BufferedImage.TYPE_INT_RGB);
tag.getGraphics().drawImage(img, 0, 0, rect.width, rect.height,
null);
String pdfFloder=pdfPath.substring(0,pdfPath.lastIndexOf(".pdf"));
FileOutputStream out = new FileOutputStream(
pdfFloder+"_"+ i + ".jpg"); // 输出到文件流
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(tag); // JPEG编码
out.close();
}
pdffile=null;
buf.clear();
file.delete();
}
public static void main(String[] args) {
try {
JavaAgent ja=new JavaAgent();
String pafPath = "D:\\研磨设计模式.pdf";
ja.setup(pafPath);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
pdf 转换成img图片源代码
该代码需要用到 PDFRenderer.jar ,请自行下载,或者到我的百度网盘下载:
http://pan.baidu.com/s/168bzY