Java中使用icepdf轻松把pdf转换为图片

Java中使用icepdf轻松把pdf转换为图片

icepdf简介：

icepdf是java的一个专门处理pdf的外置的扩展包，使用它可以方便的把pdf转换为图片，当然它的功能不止如此，大家如果想要深入了解可以访问

http://www.icesoft.org/java/projects/ICEpdf/overview.jsf

 

Java代码实现：

 

import java.awt.image.BufferedImage;

import java.awt.image.RenderedImage;

import java.io.File;

import java.io.IOException;

import javax.imageio.ImageIO;

import org.icepdf.core.pobjects.Document;

import org.icepdf.core.pobjects.Page;

import org.icepdf.core.util.GraphicsRenderingHints;

public class PDFtojpg{

    public static void main(String[] args) {

    	//select the path here 
    	//you can use the direct filepath or absolute path
    	//you can change it as you like
    	String filePath = "D:\\123.pdf";
        Document document = new Document();

        try {

            document.setFile(filePath);

        	} catch (Exception ex) {

        }

        //determine the scale of the image 
        //and the direction of the image 
        
        float scale = 1.3f;

        float rotation = 0f;

        for (int i = 0; i < document.getNumberOfPages(); i++) {

            BufferedImage image = (BufferedImage)

            document.getPageImage(i,GraphicsRenderingHints.SCREEN,Page.BOUNDARY_CROPBOX, rotation, scale);

            RenderedImage rendImage = image;

            try {

                //System.out.println("/t capturing page " + i);——only for testing,you can delete it
            	//the next two lines determine the saving path 
            	//you can change it via the way you like
                File file = new File("D:\\imageCapture1_" + i + ".png");

                ImageIO.write(rendImage, "png", file);

            	} catch (IOException e) {

                e.printStackTrace();
            }

            image.flush();

        }

        document.dispose();
    }
}

 

 

关于如何导入外置jar包：

使用icepdf需要使用外置的jar包，下载链接为：

http://www.icesoft.org/java/downloads/icepdf-downloads.jsf

1 首先在自己建立的工程上点击鼠标右键

2 找到BuildPath

3 在BuildPath的子菜单中点击Add Externel Archives ...

4 打开jar包即可