java使用liberoffice把word转pdf，pdf加水印

Posted 2021-09-06 宇宙磅礴而冷漠

文章目录

• libreoffice下载地址
• 安装
• java调用
• linux安装windows中文字体解决pdf乱码
• pdf加水印

libreoffice下载地址

https://zh-cn.libreoffice.org/get-help/install-howto/linux/

安装

解压

tar -xvf xxxx.tar.gz

进入解压执行命令

yum install ./LibreOffice_4.x.x_Linux_x86_rpm/RPMS/*.rpm

然后在/opt 下会有文件夹/opt/liberofficex.x

java调用

依赖

<dependency>
     <groupId>com.github.livesense</groupId>
     <artifactId>jodconverter-core</artifactId>
     <version>1.0.5</version>
 </dependency>

import org.artofsolving.jodconverter.OfficeDocumentConverter;
import org.artofsolving.jodconverter.office.DefaultOfficeManagerConfiguration;
import org.artofsolving.jodconverter.office.OfficeManager;

import java.io.File;

public class LibreOfficeWordToPDFUtil {
    public  static void libreOfficeToPDF(File inputfile, File outputfile) {
          // libreOffice的安装目录
        String LibreOffice_HOME = "/opt/libreoffice7.1";
        DefaultOfficeManagerConfiguration configuration = new DefaultOfficeManagerConfiguration();
        configuration.setOfficeHome(new File(LibreOffice_HOME));
        // 端口号
        configuration.setPortNumber(8100);
        configuration.setTaskExecutionTimeout(1000 * 60 * 20L);
//         设置任务执行超时为20分钟
        configuration.setTaskQueueTimeout(1000 * 60 * 60 * 24L);
//         设置任务队列超时为24小时
        OfficeManager officeManager = configuration.buildOfficeManager();
        officeManager.start();
        OfficeDocumentConverter converter = new OfficeDocumentConverter(officeManager);
        converter.getFormatRegistry();
        try {
            converter.convert(inputfile, outputfile);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            officeManager.stop();
        }
    }
}

linux安装windows中文字体解决pdf乱码

复制C:\\windows\\Fonts里的字体到linux下的/usr/share/fonts/chinese
直接把文件夹复制过去然后把Fonts改名chinese
linux下若没有目录就创建目录

进入chinese
执行

sudo fc-cache -fv

如果 fc-cache 未找到命令

yum install lsb

生效

source /etc/profile

查看是否有了中文字体

fc-list  |wc -l
fc-list :lang=zh-cn | sort

pdf加水印

依赖

<dependency>
       <groupId>com.itextpdf.tool</groupId>
       <artifactId>xmlworker</artifactId>
       <version>5.5.10</version>
</dependency>
<dependency>
       <groupId>com.itextpdf</groupId>
       <artifactId>itextpdf</artifactId>
       <version>5.5.10</version>
</dependency>

import com.itextpdf.text.Element;
import com.itextpdf.text.pdf.*;

import java.io.FileOutputStream;

public class PDFWaterUtil {
    public static void addPDFWater(String pdfFilePath, String outputFilePath) {
        try {
            // 原PDF文件
            PdfReader reader = new PdfReader(pdfFilePath);
            // 输出的PDF文件内容
            PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outputFilePath));
            BaseFont baseFont = BaseFont.createFont("C:/Windows/Fonts/SIMYOU.TTF",BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);
//            BaseFont baseFont = BaseFont.createFont("/usr/share/fonts/chinese/SIMYOU.TTF",BaseFont.IDENTITY_H,BaseFont.NOT_EMBEDDED);
            //BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.EMBEDDED);
            PdfGState gs = new PdfGState();
            // 设置透明度
            gs.setFillOpacity(0.3f);
            gs.setStrokeOpacity(0.4f);
            //页数
            int totalPage = reader.getNumberOfPages() + 1;
            for (int i = 1; i < totalPage; i++) {
                // 内容上层
//			PdfContentByte content = stamper.getOverContent(i);
                // 内容下层
                PdfContentByte content = stamper.getUnderContent(i);
                content.beginText();
                // 字体添加透明度
                content.setGState(gs);
                // 添加字体大小等
                content.setFontAndSize(baseFont, 50);
                // 添加范围
                content.setTextMatrix(70, 200);
                // 具体位置 内容 旋转多少度 共360度
                 content.showTextAligned(Element.ALIGN_CENTER, "logotext", 100, 0, 300);
                 content.showTextAligned(Element.ALIGN_CENTER, "logotext", 200, 80, 300);
                 content.showTextAligned(Element.ALIGN_CENTER, "logotext", 300, 180, 300);
                 content.showTextAligned(Element.ALIGN_CENTER, "logotext", 400, 280, 300);
                 content.endText();
            }
            // 关闭
            stamper.close();
            reader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}