java图片转pdf
前言
图片文件转pdf
如何将图片转pdf
- 引入依赖
<dependency><groupId>com.lowagie</groupId><artifactId>itext</artifactId><version>4.2.1</version></dependency><dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.5.13.3</version></dependency>
- 转换工具
import com.itextpdf.text.Document;
import com.itextpdf.text.Image;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.PdfWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.io.FileOutputStream;
import java.io.IOException;public class ImageToPdfUtil {private static Logger log = LoggerFactory.getLogger(ImageToPdfUtil.class);/*** 支持png jpg** @param source* @param target* @return*/public static boolean image2Pdf(String source, String target) {Document document = new Document();// 设置文档页边距document.setMargins(0, 0, 0, 0);FileOutputStream fos = null;try {fos = new FileOutputStream(target);PdfWriter.getInstance(document, fos);// 打开文档document.open();// 获取图片的宽高Image image = Image.getInstance(source);float imageHeight = image.getScaledHeight();float imageWidth = image.getScaledWidth();// 设置页面宽高与图片一致Rectangle rectangle = new Rectangle(imageWidth, imageHeight);document.setPageSize(rectangle);// 图片居中image.setAlignment(Image.ALIGN_CENTER);// 新建一页添加图片document.newPage();document.add(image);} catch (Exception ioe) {log.error("image to pdf fail，" + source + "-->" + target, ioe);return false;} finally {// 关闭文档try {document.close();fos.flush();fos.close();} catch (IOException e) {log.error("document close fail", e);}}return true;}
}
- 测试用例
ImageToPdfUtil.image2Pdf("C:\\test\\test.jpg", "C:\\test\\test.pdf");
读取test.jpg生成一个pdf 文件