java使用 poi 版本 3.10-FINAL 给word 加多个水印 代码

以下是使用poi版本3.10-FINAL给word加多个水印的示例代码：

import java.io.*;
import org.apache.poi.xwpf.usermodel.*;
import org.apache.poi.util.IOUtils;

public class AddMultipleWatermarksToWord {

   public static void main(String[] args) {

      try {
         // Open the Word document
         FileInputStream fis = new FileInputStream("input.docx");
         XWPFDocument document = new XWPFDocument(fis);

         // Add the first watermark
         XWPFParagraph waterMark1 = document.createParagraph();
         waterMark1.setAlignment(ParagraphAlignment.CENTER);
         waterMark1.setVerticalAlignment(TextAlignment.CENTER);
         // Add the watermark image
         InputStream image1 = new FileInputStream("watermark1.png");
         byte[] bytes1 = IOUtils.toByteArray(image1);
         XWPFRun run1 = waterMark1.createRun();
         run1.addPicture(new ByteArrayInputStream(bytes1), XWPFDocument.PICTURE_TYPE_PNG, "watermark1.png", Units.toEMU(200), Units.toEMU(200));

         // Add the second watermark
         XWPFParagraph waterMark2 = document.createParagraph();
         waterMark2.setAlignment(ParagraphAlignment.CENTER);
         waterMark2.setVerticalAlignment(TextAlignment.CENTER);
         // Add the watermark image
         InputStream image2 = new FileInputStream("watermark2.png");
         byte[] bytes2 = IOUtils.toByteArray(image2);
         XWPFRun run2 = waterMark2.createRun();
         run2.addPicture(new ByteArrayInputStream(bytes2), XWPFDocument.PICTURE_TYPE_PNG, "watermark2.png", Units.toEMU(200), Units.toEMU(200));

         // Save the document
         FileOutputStream fos = new FileOutputStream("output.docx");
         document.write(fos);
         fos.close();
         document.close();
         System.out.println("Watermarks added successfully.");
      } catch (Exception e) {
         System.out.println("An error occurred: " + e.getMessage());
         e.printStackTrace();
      }
   }
}

该代码将打开名为“input.docx”的Word文档，添加两个水印，并将其保存为名为“output.docx”的新文档。要添加更多的水印，可以使用类似的代码，在文档中创建新的段落并添加图像。