废话少说,直接上代码
package com.pdf.test;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.rendering.PDFRenderer;
import com.lowagie.text.pdf.PdfReader;
public class pdf2ImageDemo {
public static void main(String[] args) {
String outPutPath = "D:/PDF/Data.pdf";
String dstImgFolder = "D:\\Developer\\eclipse2017\\"
+ "pdf-logoImage-testing\\src\\test\\resources\\images";
long start = System.currentTimeMillis();
pdf2ImageDemo(outPutPath, dstImgFolder, 96);
long end = System.currentTimeMillis();
System.out.println("总共耗时:" + (end - start));
}
/***
* PDF文件转PNG/JPEG图片
* @param PdfFilePathpdf完整路径
* @param imgFilePath图片存放的文件夹
* @param dpi越大转换后越清晰,相对转换速度越慢,一般电脑默认96dpi
*/
public static void pdf2ImageDemo(String PdfFilePath,
String dstImgFolder, int dpi) {
File file = new File(PdfFilePath);
PDDocument pdDocument;
try {
String imgPDFPath = file.getParent();
int dot = file.getName().lastIndexOf('.');
// 获取图片文件名
String imagePDFName = file.getName().substring(0, dot);
String imgFolderPath = null;
if (dstImgFolder.equals("")) {
// 获取图片存放的文件夹路径
imgFolderPath = imgPDFPath + File.separator + imagePDFName;
} else {
imgFolderPath = dstImgFolder + File.separator + imagePDFName;
}
if (createDirectory(imgFolderPath)) {
pdDocument = PDDocument.load(file);
PDFRenderer renderer = new PDFRenderer(pdDocument);
PdfReader reader = new PdfReader(PdfFilePath);
int pages = reader.getNumberOfPages();// 获取PDF页数
System.out.println("PDF page number is:" + pages);
StringBuffer imgFilePath = null;
for (int i = 0; i < pages; i++) {
String imgFilePathPrefix = imgFolderPath
+ File.separator + imagePDFName;
imgFilePath = new StringBuffer();
imgFilePath.append(imgFilePathPrefix);
imgFilePath.append("_");
imgFilePath.append(String.valueOf(i + 1));
imgFilePath.append(".png");// PNG
File dstFile = new File(imgFilePath.toString());
BufferedImage image = renderer.renderImageWithDPI(i, dpi);
ImageIO.write(image, "png", dstFile);// PNG
}
System.out.println("PDF文档转PNG图片成功!");
} else {
System.out.println("PDF文档转PNG图片失败:"
+ "创建" + imgFolderPath + "失败");
}
} catch (IOException e) {
e.printStackTrace();
}
}
private static boolean createDirectory(String folder) {
File dir = new File(folder);
if (dir.exists()) {
return true;
} else {
return dir.mkdirs();
}
}
}
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