itext pdf 设计表单，添加文字及图片内容
package com.app.util;import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.*;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.Base64;
import java.util.HashMap;
import java.util.Map;
public class TestPdf {
public static void main(String[] args) throws Exception {
testPdf();
}
static void testPdf() throws Exception {
// 模板文件路径
String inputFileName = "D:\\pdfWork\\1.pdf";
// 生成的文件路径
String outputFileName = "D:\\pdfWork\\2.pdf";
OutputStream os = null;
PdfStamper ps = null;
PdfReader reader = null;
PdfStamper stamper = null;
try {
os = new FileOutputStream(new File(outputFileName));
// 2 读入pdf表单
reader = new PdfReader(inputFileName);
// 3 根据表单生成一个新的Pdf
ps = new PdfStamper(reader, os);
String password = "123456";
//pdf权限，值为"PdfWriter.ALLOW_PRINTING"
int permission = 0;
ps.setEncryption(password.getBytes(),
password.getBytes(),PdfWriter.ALLOW_SCREENREADERS, false);
// 4 获取pdf表单
AcroFields form = ps.getAcroFields();
// 5给表单添加中文字体
// BaseFont bf = BaseFont.createFont("Font/SIMYOU.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
// form.addSubstitutionFont(bf);
// 6查询数据================================================
Map<String, Object> data = new HashMap<String, Object>();
data.put("AName", "张三");
data.put("BName", "李四");
data.put("ACode", "Z3");
data.put("BCode", "L4");
data.put("Sign_Date", "2023-9-9");
//图片地址
String imageUrl = "D:\\pdfWork\\1.png";
String imgBase64 = convertImageToBase64Str(imageUrl);
//String img2Base64 = convertImageToBase64Str(imgUrl);
Map<String, String> templateImageMap = new HashMap<>();
data.put("AImg", imgBase64);
data.put("BImg", imgBase64);
ps.setFormFlattening(true);
System.out.println("===============PDF导出成功=============");
} catch (Exception e) {
System.out.println("===============PDF导出失败=============");
e.printStackTrace();
} finally {
try {
ps.close();
reader.close();
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* 图片转Base64字符串
* @param imageFileName
* @return
*/
public static String convertImageToBase64Str(String imageFileName) {
ByteArrayOutputStream baos = null;
try {
//获取图片类型
String suffix = imageFileName.substring(imageFileName.lastIndexOf(".") + 1);
//构建文件
File imageFile = new File(imageFileName);
//通过ImageIO把文件读取成BufferedImage对象
BufferedImage bufferedImage = ImageIO.read(imageFile);
//构建字节数组输出流
baos = new ByteArrayOutputStream();
//写入流
ImageIO.write(bufferedImage, suffix, baos);
//通过字节数组流获取字节数组
byte[] bytes = baos.toByteArray();
//获取JDK8里的编码器Base64.Encoder转为base64字符
return Base64.getEncoder().encodeToString(bytes);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (baos != null) {
baos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
}
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