# Ubuntu
sudo apt install libreoffice
# CentOS
yum install libreoffice
# Windows
下載安裝 LibreOffice

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter</artifactId>
</dependency>

import java.io.*;

@Service
public class WordToPdfService {

    public void convert(String wordPath, String pdfPath) throws Exception {
        String command = "libreoffice --headless --convert-to pdf "
                + wordPath + " --outdir " + new File(pdfPath).getParent();

        Process process = Runtime.getRuntime().exec(command);
        int exitCode = process.waitFor();

        if (exitCode != 0) {
            throw new RuntimeException("Word轉(zhuǎn)PDF失敗");
        }
    }
}

<dependency>
    <groupId>org.docx4j</groupId>
    <artifactId>docx4j</artifactId>
    <version>11.4.9</version>
</dependency>
<dependency>
    <groupId>org.plutext</groupId>
    <artifactId>plutext-pdf-converter</artifactId>
    <version>3.3.0</version>
</dependency>

import org.docx4j.Docx4J;
import org.docx4j.openpackaging.packages.WordprocessingMLPackage;

import java.io.FileOutputStream;

public void convert() throws Exception {
    WordprocessingMLPackage wordMLPackage =
            WordprocessingMLPackage.load(new File("input.docx"));

    Docx4J.toPDF(wordMLPackage, new FileOutputStream("output.pdf"));
}

<dependency>
    <groupId>com.aspose</groupId>
    <artifactId>aspose-words</artifactId>
    <version>23.12</version>
</dependency>

import com.aspose.words.Document;

Document doc = new Document("input.docx");
doc.save("output.pdf");

yum install wqy-microhei-fonts

@PostMapping("/convert")
public ResponseEntity<?> convert(MultipartFile file) throws Exception {
    // 保存word
    // 調(diào)用轉(zhuǎn)換
    // 返回pdf流
}