Java给pdf文件添加文字等信息

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maven依赖

    4.0.0
    com.ttxit
    artifact
    1.0.0
    war
    
        
            javax.servlet
            javax.servlet-api
            3.1.0
        
        
            org.jodd
            jodd-madvoc
            3.7
        
        
            org.jodd
            jodd-http
            3.7
        
        
            org.jodd
            jodd-core
            3.7
        
        
            mysql
            mysql-connector-java
            5.1.38
        
        
            org.mybatis
            mybatis
            3.3.1
        
        
            com.google.code.gson
            gson
            2.6.2
        
        
            com.itextpdf
            itextpdf
            5.5.9
        
        
            com.itextpdf
            itext-asian
            5.2.0
        
        
            log4j
            log4j
            1.2.17
        
    

    
        
            
                org.mortbay.jetty
                maven-jetty-plugin
                6.1.10
                
                    UTF-8
                    10
                    foo
                    9999
                
                
                    
                        start-jetty
                        pre-integration-test
                        
                            run
                        
                        
                            0
                            true
                        
                    
                    
                        stop-jetty
                        post-integration-test
                        
                            stop
                        
                    
                
            
            
                org.apache.maven.plugins
                maven-war-plugin
                2.0.2
                
                
            
        
    

pdfutils源码

package com.ttxit.util;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;

import org.apache.log4j.Logger;

import com.itextpdf.text.BaseColor;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfStamper;

public class PdfUtils {
    
    private static final Logger logger = Logger.getLogger(PdfUtils.class);
    static String               PDF    = "/Users/shicheng/Desktop/2_d.pdf";
    public static final String  NAME   = "STSong-Light";
    public static final String  ENCODE = "UniGB-UCS2-H";
    public static final int     SIZE   = 12;
    
    /**
     * 生成添加文字数据流
     * 
     * @param text
     *            输入信息
     * @param width
     *            宽度
     * @param height
     *            高度
     * @return 数据流
     */
    public static byte[] addText(String text, int width, int height) {
        ByteArrayOutputStream byteArrayOutputStream = null;
        PdfReader pdfReader = null;
        PdfStamper pdfStamper = null;
        PdfContentByte pdfContentByte = null;
        try {
            BaseFont baseFont = BaseFont.createFont(NAME, ENCODE, BaseFont.NOT_EMBEDDED);
            InputStream inputStream = new FileInputStream(new File(PDF)); // 读取默认pdf文件
            pdfReader = new PdfReader(inputStream); // 加载文件到pdf引擎
            byteArrayOutputStream = new ByteArrayOutputStream();
            pdfStamper = new PdfStamper(pdfReader, byteArrayOutputStream); // 加载模板
            pdfContentByte = pdfStamper.getOverContent(1); // 获取顶部
            pdfContentByte.beginText(); // 插入文字信息
            pdfContentByte.setFontAndSize(baseFont, SIZE);
            BaseColor baseColor = new BaseColor(0, 0, 0);
            pdfContentByte.setColorFill(baseColor);
            pdfContentByte.setTextMatrix(width, height); // 设置文字在页面中的坐标
            pdfContentByte.showText(text);
            pdfContentByte.endText();
        } catch (Exception e) {
            if (logger.isDebugEnabled()) {
                logger.error("addText(String, int, int) - Exception e=" + e); //$NON-NLS-1$
            }
        } finally {
            try {
                pdfStamper.close();
                pdfReader.close();
                byteArrayOutputStream.close();
            } catch (Exception _e) {
                if (logger.isDebugEnabled()) {
                    logger.error("addText(String, int, int) - Exception e=" + _e); //$NON-NLS-1$
                }
            }
        }
        return byteArrayOutputStream.toByteArray();
    }
    
}

action源码

package com.ttxit.action;

import org.apache.log4j.Logger;

import com.ttxit.util.PdfUtils;

import jodd.madvoc.meta.Action;
import jodd.madvoc.meta.In;
import jodd.madvoc.meta.MadvocAction;
import jodd.madvoc.meta.Out;
import jodd.madvoc.result.RawData;
import jodd.util.MimeTypes;

@MadvocAction
public class ImageAction {
    private static final Logger logger = Logger.getLogger(ImageAction.class);
    
    @Out
    String                      json   = "hello";
    @In
    int                         width;
    @In
    int                         height;
    
    @Action(value = "/image/brokenhearted_card", method = Action.GET)
    public RawData hello() {
        if (logger.isDebugEnabled()) {
            logger.debug("hello() - start"); //$NON-NLS-1$
        }
        RawData returnRawData = new RawData(PdfUtils.addText("AAA", width, height), MimeTypes.lookupMimeType("pdf"));
        if (logger.isDebugEnabled()) {
            logger.debug("hello() - end"); //$NON-NLS-1$
        }
        return returnRawData;
    }
    
}

转载于:https://my.oschina.net/shicheng2014/blog/654672