java根据坐标在PDF指定位置添加文本

一、使用Aspose　

　1、前言： 　

　　　1）Aspose可能需要收费，在https://mvnrepository.com/上有可能下载不下来，所以配上Aspose.Pdf的jar包

　　　　　　链接：https://pan.baidu.com/s/1kqhgT1hUsNxCR1xE9hIUkA
　　　　　　提取码：1el6

　　　2）如果想下载源文件可以进行下载

　　　　　　https://download.csdn.net/download/Romantic_321/20626543

　　　　　　https://download.csdn.net/download/Romantic_321/20626539

　2、创建一个模型对象

　　　　

package com.test.model;
 
/**
 * @author 
 * @Description
 * @date
 */
public class PdfAsposeModel {
 
    private Double xCoordinate;
 
    private Double yCoordinate;
 
    private Integer pageNum;
 
    private String content;
 
    public Double getxCoordinate() {
        return xCoordinate;
    }
 
    public void setxCoordinate(Double xCoordinate) {
        this.xCoordinate = xCoordinate;
    }
 
    public Double getyCoordinate() {
        return yCoordinate;
    }
 
    public void setyCoordinate(Double yCoordinate) {
        this.yCoordinate = yCoordinate;
    }
 
    public Integer getPageNum() {
        return pageNum;
    }
 
    public void setPageNum(Integer pageNum) {
        this.pageNum = pageNum;
    }
 
    public String getContent() {
        return content;
    }
 
    public void setContent(String content) {
        this.content = content;
    }
 
    public PdfAsposeModel(Double xCoordinate, Double yCoordinate, Integer pageNum, String content) {
        this.xCoordinate = xCoordinate;
        this.yCoordinate = yCoordinate;
        this.pageNum = pageNum;
        this.content = content;
    }
}

　　3、demo测试

　　

package com.test.asposeTest;
 
import com.aspose.pdf.*;
import com.test.model.PdfAsposeModel;
import org.junit.Test;
 
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
 
/**
 * @author qiuzhenshuo
 * @Description pdf根据坐标合成
 * @date 2021-07-28
 */
public class AsposePdfTest2 {
 
    private static final String FONT = "SimSun";
 
    private static final float FONTSIZE = 15;
 
    @Test
    public void asposeTest(){
        List<PdfAsposeModel> list = new ArrayList<>();
        list.add(new PdfAsposeModel(119d,707d,1,"阿里巴巴"));
        list.add(new PdfAsposeModel(119d,619d,1,"张三"));
        list.add(new PdfAsposeModel(119d,475d,1,"奥利给"));
        String filePath = "C:/Users/Dash/Desktop/劳动合同（标准版）.pdf";
        try {
            pdfSign2(filePath,list);
        } catch (IOException e) {
            e.printStackTrace();
        }
 
    }
 
    public void pdfSign2(String pdfFilePath,List<PdfAsposeModel> list) throws IOException {
        //获取路径
        int indexOf = pdfFilePath.lastIndexOf("/");
        if(indexOf == -1){
            indexOf = pdfFilePath.lastIndexOf("\\");
        }
        int indexOf2 = pdfFilePath.lastIndexOf(".");
        String suffix = pdfFilePath.substring(indexOf2);
        String url = pdfFilePath.substring(0,indexOf+1);
        url = url + UUID.randomUUID().toString() + suffix;
 
        //复制一份文件，因为需要生成一份新的文件，下面方法是在源文件上进行操纵的
        FileInputStream inputStream = null;
        FileOutputStream outputStream = null;
        try {
            inputStream = new FileInputStream(pdfFilePath);
            outputStream = new FileOutputStream(url);
            int hasRead =0;
            while((hasRead = inputStream.read()) != -1){
                outputStream.write(hasRead);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            inputStream.close();
            outputStream.close();
        }
 
        for (PdfAsposeModel model : list) {
            Double xCoordinate = model.getxCoordinate();
            Double yCoordinate = model.getyCoordinate();
            String content = model.getContent();
            Integer pageNum = model.getPageNum();
            if(xCoordinate == null || yCoordinate == null || content == null || "".equals(content) || pageNum == null || pageNum < 1){
                continue;
            }
            //添加内容
            Document document=new Document(url);
            if (document!=null) {
                Page page = document.getPages().get_Item(pageNum);
                if (page != null) {
                    TextParagraph paragraph = new TextParagraph();
                    paragraph.getFormattingOptions().setWrapMode(
                            TextFormattingOptions.WordWrapMode.ByWords);
                    TextState textState = new TextState();
 
                    Font pdfFont = FontRepository.findFont(FONT, true);
                    textState.setFont(pdfFont);
                    textState.setFontSize(FONTSIZE);
 
                    paragraph.appendLine(content, textState);
                    Position position = new Position(xCoordinate, yCoordinate);
                    paragraph.setPosition(position);
                    TextBuilder textBuilder = new TextBuilder(page);
                    textBuilder.appendParagraph(paragraph);
                } else {
                    System.out.println("页面第：" + pageNum + "页不存在");
                }
                document.save();
            }
        }
 
 
    }
}

 

二、使用Itext

　　1、前言

　　　　附：所使用到的依赖

　　

<dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext-asian</artifactId>
            <version>5.2.0</version>
        </dependency>
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itextpdf</artifactId>
            <version>5.5.12</version>
        </dependency>
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext-pdfa</artifactId>
            <version>5.5.12</version>
        </dependency>
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext-xtra</artifactId>
            <version>5.5.12</version>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.commons</groupId>
                    <artifactId>commons-imaging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.itextpdf.tool</groupId>
            <artifactId>xmlworker</artifactId>
            <version>5.5.12</version>
        </dependency>

 

　　2、创建模型

　　　　　　* itext大致和aspose一样，只不过aspose坐标是Double类型，而Itext是Float类型，所以在此基础上更改一下类型即可

　　3、测试demo

　　　　1）测试方法

　　

 @Test
    public void pdfTest() throws IOException, DocumentException {
        System.out.println("-------------开始时间："+new Date());
        List<PdfItextModel> list = new ArrayList<>();
        list.add(new PdfItextModel(119f,707f,1,"阿里巴巴"));
        list.add(new PdfItextModel(119f,619f,1,"张三"));
        list.add(new PdfItextModel(119f,475f,1,"奥利给"));
 
        String filePath = "C:/Users/Dash/Desktop/劳动合同（标准版）.pdf";
        PDFDocHelper2.signSinglePsw(filePath,list);
        System.out.println("------------结束时间："+new Date());
    }

 

　　　　2）代码实现

package com.test.itextTest;
 
import com.itextpdf.text.BaseColor;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfStamper;
import com.test.model.PdfItextModel;
 
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
 
/**
 * @Author 
 * @Date 19:25 2020/3/7
 * @Description 
 */
public class PDFDocHelper2 {
    // 获取基础文字
    public static BaseFont getBaseFont() throws DocumentException, IOException {
        BaseFont base = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", false);
        return base;
    }
 
    /**
     *
     * @param oldPswFilePath 原来的文件地址
     * @param list 需要添加的详细信息
     * @return
     * @throws IOException
     * @throws DocumentException
     */
    public static String signSinglePsw(String oldPswFilePath, List<PdfItextModel> list) throws IOException, DocumentException {
 
        int lastIndex = oldPswFilePath.lastIndexOf('.');
        // 获取文件后缀
        String suffix = oldPswFilePath.substring(lastIndex + 1);
        // 判断是否为pdf文件
        if (!"pdf".equals(suffix.toLowerCase())) {
            throw new RuntimeException("Not is PDF file");
        }
 
        // 生成新的文件路径
        String newPswPath = oldPswFilePath.substring(0, lastIndex) + "-副本." + suffix;
        System.out.println("单个psw文件签名生成的新路径：" + newPswPath);
 
        //解析文件
        PdfReader reader = new PdfReader(oldPswFilePath);
        FileOutputStream fOut = new FileOutputStream(newPswPath);
        PdfStamper stp = new PdfStamper(reader, fOut);
 
        // 总页数
        System.out.println("PDF总页数：" + reader.getNumberOfPages());
 
        for (PdfItextModel model : list) {
            Float xCoordinate = model.getxCoordinate();
            Float yCoordinate = model.getyCoordinate();
            Integer pageNum = model.getPageNum();
            String content = model.getContent();
            if(xCoordinate == null || yCoordinate == null ||
                    pageNum == null || pageNum == 0 || content == null || "".equals(content)){
                continue;
            }
            PdfContentByte pdfContentByte = stp.getOverContent(pageNum);
            pdfContentByte.beginText();
            // 设置字体及字号
            pdfContentByte.setFontAndSize(getBaseFont(), 16);
            addDeptReview(xCoordinate,yCoordinate,pdfContentByte, content);
            pdfContentByte.endText();
        }
        stp.close();
        // 将输出流关闭
        fOut.close();
        reader.close();
        // 文件读写结束
        System.out.println("PSW文件读写完毕");
 
        return newPswPath;
    }
 
    /**
     * @Author
     * @Date 18:48 2020/3/7
     * @Description 添加水印
     * @param content
     * @param keyword
     * @param x X轴坐标
     * @param y Y轴坐标
     */
    private static void addDeptReview(float x,float y,PdfContentByte content, String keyword) {
        content.setColorFill(BaseColor.BLACK);
        // 设置水印位置和内容
        System.out.println("水印内容：" + keyword);
        System.out.println("打印位置坐标：" + x + "," + y);
        content.showTextAligned(Element.ALIGN_LEFT, keyword, x, y, 0);
    }
 
 
}

 

　三、效果展示