本文參考來自 https://www.cnblogs.com/mituxiaogaoyang/p/15243103.html

支持windows和linux環(huán)境，linux需要安裝中文避免亂碼問題

<dependency>
    <groupId>org.docx4j</groupId>
    <artifactId>docx4j-JAXB-Internal</artifactId>
    <version>8.3.1</version>
</dependency>
<dependency>
    <groupId>org.docx4j</groupId>
    <artifactId>docx4j-JAXB-ReferenceImpl</artifactId>
    <version>8.3.1</version>
</dependency>
<dependency>
    <groupId>org.docx4j</groupId>
    <artifactId>docx4j-export-fo</artifactId>
    <version>8.3.1</version>
</dependency>

package com.xxx.utils;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.docx4j.Docx4J;
import org.docx4j.fonts.IdentityPlusMapper;
import org.docx4j.fonts.Mapper;
import org.docx4j.fonts.PhysicalFont;
import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
import org.docx4j.org.apache.poi.util.IOUtils;
import org.docx4j.fonts.PhysicalFonts;

import java.io.File;
import java.io.FileOutputStream;

public class Word2PdfUtil {

    private static final Log log = LogFactory.getLog(Word2PdfUtil.class);

    public static void main(String[] args) throws Exception {
        String inputWord = "D:\\var\\aa.docx";
        String outputFile = "D:\\var\\bb.pdf";
        boolean isSuccess = Word2PdfUtil.convertDoc2Pdf(inputWord, outputFile);
        System.out.println("convertDoc2Pdf：============" + isSuccess);
    }

    /**
     * docx文檔轉(zhuǎn)換為PDF
     *
     * @param docPath WORD文檔存儲路徑
     * @param pdfPath PDF文檔存儲路徑
     * @throws Exception 可能為Docx4JException, FileNotFoundException, IOException等
     */
    public static boolean convertDoc2Pdf(String docPath, String pdfPath) throws Exception {
        FileOutputStream fileOutputStream = null;
        try {
            File file = new File(docPath);
            fileOutputStream = new FileOutputStream(new File(pdfPath));
            WordprocessingMLPackage mlPackage = WordprocessingMLPackage.load(file);
            setFontMapper(mlPackage);
            Docx4J.toPDF(mlPackage, new FileOutputStream(new File(pdfPath)));
            log.info("WORD文檔轉(zhuǎn)換為PDF成功===========");
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            log.error("WORD文檔轉(zhuǎn)換為PDF失敗===========");
        } finally {
            IOUtils.closeQuietly(fileOutputStream);
        }
        return false;
    }

    private static void setFontMapper(WordprocessingMLPackage mlPackage) throws Exception {
        Mapper fontMapper = new IdentityPlusMapper();
        // 加載字體文件（解決linux環(huán)境下無中文字體問題）
        if (PhysicalFonts.get("SimSun") == null) {
            System.out.println("加載本地SimSun字體庫");
//          PhysicalFonts.addPhysicalFonts("SimSun", WordUtils.class.getResource("/fonts/SIMSUN.TTC"));
        }
        fontMapper.put("隸書", PhysicalFonts.get("LiSu"));
        fontMapper.put("宋體", PhysicalFonts.get("SimSun"));
        fontMapper.put("微軟雅黑", PhysicalFonts.get("Microsoft Yahei"));
        fontMapper.put("黑體", PhysicalFonts.get("SimHei"));
        fontMapper.put("楷體", PhysicalFonts.get("KaiTi"));
        fontMapper.put("新宋體", PhysicalFonts.get("NSimSun"));
        fontMapper.put("華文行楷", PhysicalFonts.get("STXingkai"));
        fontMapper.put("華文仿宋", PhysicalFonts.get("STFangsong"));
        fontMapper.put("仿宋", PhysicalFonts.get("FangSong"));
        fontMapper.put("幼圓", PhysicalFonts.get("YouYuan"));
        fontMapper.put("華文宋體", PhysicalFonts.get("STSong"));
        fontMapper.put("華文中宋", PhysicalFonts.get("STZhongsong"));
        fontMapper.put("等線", PhysicalFonts.get("SimSun"));
        fontMapper.put("等線 Light", PhysicalFonts.get("SimSun"));
        fontMapper.put("華文琥珀", PhysicalFonts.get("STHupo"));
        fontMapper.put("華文隸書", PhysicalFonts.get("STLiti"));
        fontMapper.put("華文新魏", PhysicalFonts.get("STXinwei"));
        fontMapper.put("華文彩云", PhysicalFonts.get("STCaiyun"));
        fontMapper.put("方正姚體", PhysicalFonts.get("FZYaoti"));
        fontMapper.put("方正舒體", PhysicalFonts.get("FZShuTi"));
        fontMapper.put("華文細黑", PhysicalFonts.get("STXihei"));
        fontMapper.put("宋體擴展", PhysicalFonts.get("simsun-extB"));
        fontMapper.put("仿宋_GB2312", PhysicalFonts.get("FangSong_GB2312"));
        fontMapper.put("新細明體", PhysicalFonts.get("SimSun"));
        // 解決宋體（正文）和宋體（標題）的亂碼問題
        PhysicalFonts.put("PMingLiU", PhysicalFonts.get("SimSun"));
        PhysicalFonts.put("新細明體", PhysicalFonts.get("SimSun"));
        // 宋體&新宋體
        PhysicalFont simsunFont = PhysicalFonts.get("SimSun");
        fontMapper.put("SimSun", simsunFont);
        // 設置字體
        mlPackage.setFontMapper(fontMapper);
    }

}

安裝中文字體

從windows的C:\Windows\Fonts拷貝字體到linux服務器fonts目錄下，新建目錄chinese

cd ../usr/share/fonts

在fonts目錄下執(zhí)行以下命令

字體擴展

mkfontscale

新增字體目錄

mkfontdir

刷新緩存

fc-cache -fv

font字體截圖

image.png