POM依赖
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>fontbox</artifactId>
<version>2.0.9</version>
</dependency>
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox</artifactId>
<version>2.0.9</version>
</dependency>
代码
package com.example.demo;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.rendering.PDFRenderer;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class Demo1 {
public static void main(String[] args) {
pdf2png("D:","111","png");
}
/**
* 转换全部的pdf
* @param fileAddress 文件地址
* @param filename PDF文件名
* @param type 图片类型
*/
public static void pdf2png(String fileAddress,String filename,String type) {
// 将pdf装图片 并且自定义图片得格式大小
File file = new File(fileAddress+"\\"+filename+".pdf");
try {
PDDocument doc = PDDocument.load(file);
PDFRenderer renderer = new PDFRenderer(doc);
int pageCount = doc.getNumberOfPages();
for (int i = 0; i < pageCount; i++) {
//注意:DPI决定转之后图片的清晰度
BufferedImage image = renderer.renderImageWithDPI(i, 300); // Windows native DPI
// BufferedImage srcImage = resize(image, 240, 240);//产生缩略图
ImageIO.write(image, type, new File(fileAddress+"\\"+filename+"_"+(i+1)+"."+type));
}
} catch (IOException e) {
e.printStackTrace();
}
}
}