Java 调用 LibreOffice 把 word 转换成 pdf

1.下载安装 LibreOffice 

https://www.libreoffice.org/download/download-libreoffice/

2.Maven 配置

<dependency>
    <groupId>org.jodconverter</groupId>
    <artifactId>jodconverter-spring-boot-starter</artifactId>
    <version>4.4.8</version>
</dependency>
<dependency>
    <groupId>org.jodconverter</groupId>
    <artifactId>jodconverter-local-lo</artifactId>
    <version>4.4.8</version>
</dependency>

3.application.properties 配置

#LibreOffice配置
jodconverter.local.enabled=true
# /usr/bin/libreoffice # Linux下的路径示例
# C:/Program Files/LibreOffice # Windows下的路径示例
jodconverter.local.office-home=C:/Program Files/LibreOffice
# 可启动多个进程处理并发
jodconverter.local.port-numbers=9080,9081,9082
# 每个进程重启前最大任务数
jodconverter.local.max-tasks-per-process=100

4.工具类

import org.jodconverter.core.DocumentConverter;
import org.jodconverter.core.document.DefaultDocumentFormatRegistry;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.io.*;

@Service
public class OfficeConvertService {

    @Autowired
    private DocumentConverter documentConverter;

    /**
     * Word文件转换成PDF文件
     */
    public void convertWordToPdf(File wordFile, File pdfFile) {
        try {
            documentConverter
                    .convert(wordFile)
                    .to(pdfFile)
                    .execute();
        } catch (Exception e) {
            throw new RuntimeException("文档转换失败", e);
        }
    }

    /**
     * Word输入流转换成PDF输出流
     */
    public void convertStream(InputStream inputStream, OutputStream outputStream) {
        try {
            documentConverter
                    .convert(inputStream)
                    .as(DefaultDocumentFormatRegistry.DOCX) // 指定源文件格式
                    .to(outputStream)
                    .as(DefaultDocumentFormatRegistry.PDF)  // 指定目标格式
                    .execute();
        } catch (Exception e) {
            throw new RuntimeException("流式转换失败", e);
        }
    }
}