Java pdf轉高清圖片

package com.hyb.kai.web.controller;

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.util.GraphicsRenderingHints;

/**
 * @author: GPJ
 * @Description: pdf 轉單張高清圖片
 * @Date Created in 9:27 2018/1/9
 * @Modified By:
 */
public class IcePdf {
    public static void pdf2Pic(String pdfPath, String path){
        Document document = new Document();
        document.setFile(pdfPath);
        //縮放比例
        float scale = 2.5f;
        //旋轉角度
        float rotation = 0f;

        for (int i = 0; i < document.getNumberOfPages(); i++) {
            BufferedImage image = (BufferedImage)
                    document.getPageImage(i, GraphicsRenderingHints.SCREEN, org.icepdf.core.pobjects.Page.BOUNDARY_CROPBOX, rotation, scale);
            RenderedImage rendImage = image;
            try {
                String imgName = i + ".png";
                System.out.println(imgName);
                File file = new File(path + imgName);
                ImageIO.write(rendImage, "png", file);
            } catch (IOException e) {
                e.printStackTrace();
            }
            image.flush();
        }
        document.dispose();
    }
    public static void main(String[] args) {
        String filePath = "D:\\bbb.pdf";
        pdf2Pic(filePath, "D:\\bb");
    }
} 

所需jar包連結： https://pan.baidu.com/s/1c3h4nkc