aspose添加word水印和itextpdf添加pdf水印

待我称王封你为后i 2023-02-10 03:58 282阅读 0赞

项目描述：最近有一个需求是在文件上传的时候，需要添加水印来防伪，防止篡改。网上找了下，发现一个aspose可以实现

# aspose添加word水印 #

jar包在最下面！！！

package com.wlkj.watermark.word;
    
    import com.aspose.words.*;
    import com.aspose.words.Shape;
    
    import java.awt.*;
    
    public class WordWatermarkUtil {
    
        public static void main(String[] args) {
            try {
                Document document = new Document("C:\\Users\\Administrator\\Desktop\\背影.docx");
                WordWatermarkUtil.WaterMarkMore(document,"我的水印");
                //文件输出路径
                document.save("C:\\Users\\Administrator\\Desktop\\背影2.docx");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
        /**
         * 为word文档添加水印
         * @param doc word文档模型
         * @param watermarkText 需要添加的水印字段
         * @throws Exception
         */
        public static void insertWatermarkText(Document doc, String watermarkText) throws Exception {
            Shape watermark = new Shape(doc, ShapeType.TEXT_PLAIN_TEXT);
            //水印内容
            watermark.getTextPath().setText(watermarkText);
            //水印字体
            watermark.getTextPath().setFontFamily("宋体");
            //水印宽度
            watermark.setWidth(100);
            //水印高度
            watermark.setHeight(20);
            //旋转水印
            watermark.setRotation(-40);
            //水印颜色 浅灰色
            watermark.getFill().setColor(Color.lightGray);
            watermark.setStrokeColor(Color.lightGray);
            //设置相对水平位置
            watermark.setRelativeHorizontalPosition(RelativeHorizontalPosition.PAGE);
            //设置相对垂直位置
            watermark.setRelativeVerticalPosition(RelativeVerticalPosition.PAGE);
            //设置包装类型
            watermark.setWrapType(WrapType.NONE);
            //设置垂直对齐
            watermark.setVerticalAlignment(VerticalAlignment.CENTER);
            //设置文本水平对齐方式
            watermark.setHorizontalAlignment(HorizontalAlignment.CENTER);
            Paragraph watermarkPara = new Paragraph(doc);
            watermarkPara.appendChild(watermark);
            for (Section sect : doc.getSections())
            {
                insertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HEADER_PRIMARY);
                insertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HEADER_FIRST);
                insertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HEADER_EVEN);
            }
            System.out.println("Watermark Set");
        }
        /**
         * 在页眉中插入水印
         * @param watermarkPara
         * @param sect
         * @param headerType
         * @throws Exception
         */
        private static void insertWatermarkIntoHeader(Paragraph watermarkPara, Section sect, int headerType) throws Exception{
            HeaderFooter header = sect.getHeadersFooters().getByHeaderFooterType(headerType);
            if (header == null)
            {
                header = new HeaderFooter(sect.getDocument(), headerType);
                sect.getHeadersFooters().add(header);
            }
            header.appendChild(watermarkPara.deepClone(true));
        }
    
        /**
         * 设置水印属性
         * @param doc
         * @param wmText
         * @param left
         * @param top
         * @return
         * @throws Exception
         */
        public static Shape ShapeMore(Document doc, String wmText, double left, double top)throws Exception{
            Shape waterShape = new Shape(doc, ShapeType.TEXT_PLAIN_TEXT);
            //水印内容
            waterShape.getTextPath().setText(wmText);
            //水印字体
            waterShape.getTextPath().setFontFamily("宋体");
            //水印宽度
            waterShape.setWidth(40);
            //水印高度
            waterShape.setHeight(13);
            //旋转水印
            waterShape.setRotation(-40);
            //水印颜色 浅灰色
            /*waterShape.getFill().setColor(Color.lightGray);
            waterShape.setStrokeColor(Color.lightGray);*/
            waterShape.setStrokeColor(new Color(210,210,210));
            //将水印放置在页面中心
            waterShape.setLeft(left);
            waterShape.setTop(top);
            //设置包装类型
            waterShape.setWrapType(WrapType.NONE);
            return waterShape;
        }
    
        /**
         * 插入多个水印
         * @param mdoc
         * @param wmText
         * @throws Exception
         */
        public static void WaterMarkMore(Document mdoc, String wmText)throws Exception{
            Paragraph watermarkPara = new Paragraph(mdoc);
            for (int j = 0; j < 500; j = j + 100)
            {
                for (int i = 0; i < 700; i = i + 85)
                {
                    Shape waterShape = ShapeMore(mdoc, wmText, j, i);
                    watermarkPara.appendChild(waterShape);
                }
            }
            for (Section sect : mdoc.getSections())
            {
                insertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HEADER_PRIMARY);
                insertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HEADER_FIRST);
                insertWatermarkIntoHeader(watermarkPara, sect, HeaderFooterType.HEADER_EVEN);
            }
        }
    }

# 效果图： #

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NTU1NDkw_size_16_color_FFFFFF_t_70][]

# 二、itextpdf添加pdf水印 #

## 添加maven依赖 ##

<dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itextpdf</artifactId>
                <version>5.5.13</version>
            </dependency>
            <dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itext-asian</artifactId>
                <version>5.2.0</version>
            </dependency>

package com.wlkj.watermark.pdf;
    
    import com.itextpdf.text.Element;
    import com.itextpdf.text.Rectangle;
    import com.itextpdf.text.pdf.*;
    
    import javax.swing.*;
    import java.awt.*;
    import java.io.FileOutputStream;
    import java.io.InputStream;
    
    public class PdfwaterMarkUtil {
    
    	private static int interval = -5;   
    	public static void wateMark(InputStream inputStream, String outputFile, String waterMarkName){
    		try{
    			PdfReader reader = new PdfReader(inputStream);
    			PdfStamper stamper = new PdfStamper(reader,new FileOutputStream(outputFile));
    			BaseFont base = BaseFont.createFont("STSong-Light","UniGB-UCS2-H",BaseFont.EMBEDDED);
    			Rectangle pageRect = null;
    			PdfGState gs = new PdfGState();
    			gs.setFillOpacity(0.3f);
    			gs.setStrokeOpacity(0.4f);
    			int total = reader.getNumberOfPages() + 1;
    			   
                JLabel label = new JLabel();  
                FontMetrics metrics;  
                int textH = 0;   
                int textW = 0;   
                label.setText(waterMarkName);   
                metrics = label.getFontMetrics(label.getFont());   
                textH = metrics.getHeight();
                textW = metrics.stringWidth(label.getText());  
                    
                PdfContentByte under;    
                for (int i = 1; i < total; i++) {   
                    pageRect = reader.getPageSizeWithRotation(i);   
                    under = stamper.getOverContent(i);   
                    under.saveState();  
                    under.setGState(gs);  
                    under.beginText();    
                    under.setFontAndSize(base, 20);
                    under.setRGBColorFill(145,145,145);
                   
                    // 水印文字成30度角倾斜  
                    //你可以随心所欲的改你自己想要的角度
                    for (int height = interval + textH; height < pageRect.getHeight();  
                            height = height + textH*3) {    
                        for (int width = interval + textW; width < pageRect.getWidth() + textW;   
                                width = width + textW*2) {  
                    under.showTextAligned(Element.ALIGN_LEFT  
                            , waterMarkName, width - textW,  
                            height - textH, 30);  
                        }  
                    }  
                    // 添加水印文字    
                    under.endText();    
                }   
                stamper.close();  
                reader.close();
    
    			
    		}catch (Exception e) {
    			// TODO: handle exception
    			e.printStackTrace();
    		}
    	}
    	public static void main(String[] args) {
    		 //wateMark("C:\\Users\\Administrator\\Desktop\\背影.pdf","C:\\Users\\Administrator\\Desktop\\背影2.pdf","我的水印");
    	}
    
    }

效果图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NTU1NDkw_size_16_color_FFFFFF_t_70 1][]

demo地址

链接：https://pan.baidu.com/s/1Q0kyl\_J9Hfy\_Rx4aK2w\_Lw   
提取码：gqh2

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NTU1NDkw_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200520084653305.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NTU1NDkw,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NTU1NDkw_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200520084722266.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NTU1NDkw,size_16,color_FFFFFF,t_70