diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/config/ElePropertyConfig.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/config/ElePropertyConfig.java
index 76acba6..1f21526 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/config/ElePropertyConfig.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/config/ElePropertyConfig.java
@@ -68,6 +68,7 @@ public class ElePropertyConfig {
     @Value("${backup.remote.port}")
     private int remotePort;
 
+    @Getter
     @Value("${winPrefix}")
     private String winPrefix = "";
 
diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/ChatService.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/ChatService.java
index be3830e..f4b5e48 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/ChatService.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/ChatService.java
@@ -128,7 +128,7 @@ public class ChatService {
                 } else {
                     FileUtil.writeFromStream(file.getInputStream(), srcPath);
                     if (Arrays.asList("doc", "docx").contains(fileType)) {
-                        OfficeFileUtil.doc2pdf(srcPath, pdfPath);
+                        OfficeFileUtil.doc2pdf(srcPath, pdfPath, elePropertyConfig.getWinPrefix());
                     } else {
                         OfficeFileUtil.ppt2pdf(srcPath, pdfPath);
                     }
diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java
index 29169ca..0b0326d 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/EdFileInfoServiceImpl.java
@@ -1344,18 +1344,20 @@ public class EdFileInfoServiceImpl extends ServiceImpl<EdFileInfoMapper, EdFileI
     @Override
     public ResponseEntity<InputStreamResource> preview(String id, HttpServletResponse response, int dataOwnCode) {
         String fileSaveTmpPath = null;
+        String wordPath = null;
         try {
             EdFileInfo fileInfo = this.baseMapper.selectById(id);
             Assert.isTrue(Objects.nonNull(fileInfo), "文件不存在");
             String fileDbPath = commonService.getDbPath(fileInfo.getFilePath());
             String fileSysPath = commonService.getFileSysPath(fileInfo.getId());
             fileSaveTmpPath = elePropertyConfig.getEleTmpPath() + File.separator + IdUtil.fastSimpleUUID() + "." + fileInfo.getFileType();
+            wordPath = new String(fileSaveTmpPath);
             FileUtil.copy(fileSysPath, fileSaveTmpPath, true);
             EleCommonUtil.decryptFile(fileSaveTmpPath, SecureUtil.aes(elePropertyConfig.getFileEncPasswd().getBytes()));
 
             if (Arrays.asList("doc", "docx").contains(fileInfo.getFileType())) {
                 String pdfTmpPath = elePropertyConfig.getEleTmpPath() + File.separator + fileInfo.getId() + ".pdf";
-                OfficeFileUtil.doc2pdf(fileSaveTmpPath, pdfTmpPath);
+                OfficeFileUtil.doc2pdf(fileSaveTmpPath, pdfTmpPath, elePropertyConfig.getWinPrefix());
                 fileSaveTmpPath = pdfTmpPath;
             }
 
@@ -1385,6 +1387,9 @@ public class EdFileInfoServiceImpl extends ServiceImpl<EdFileInfoMapper, EdFileI
             throw new BizException("文件预览错误，文件id是 " + id);
         } finally {
             FileUtil.del(fileSaveTmpPath);
+            if (StrUtil.isNotBlank(wordPath)) {
+                FileUtil.del(wordPath);
+            }
         }
     }
 
diff --git a/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/OfficeFileUtil.java b/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/OfficeFileUtil.java
index 0cb766a..f17b752 100644
--- a/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/OfficeFileUtil.java
+++ b/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/OfficeFileUtil.java
@@ -6,9 +6,6 @@ import cn.hutool.core.text.StrFormatter;
 import cn.hutool.core.util.IdUtil;
 import cn.hutool.core.util.RuntimeUtil;
 import com.benjaminwan.ocrlibrary.OcrResult;
-import com.documents4j.api.DocumentType;
-import com.documents4j.api.IConverter;
-import com.documents4j.job.LocalConverter;
 import com.electromagnetic.industry.software.common.exception.BizException;
 import com.electromagnetic.industry.software.common.pojo.PageFile;
 import io.github.mymonstercat.Model;
@@ -35,7 +32,6 @@ import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.OutputStream;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.util.ArrayList;
@@ -45,37 +41,37 @@ import java.util.Objects;
 @Slf4j
 public class OfficeFileUtil {
 
-    public static void doc2pdf(String wordPath, String pdfPath) {
+    public static void doc2pdf(String wordPath, String pdfPath, String installPath) {
         if (FileUtil.exist(pdfPath)) {
             return;
         }
         log.info("Start convert word file to pdf, word path: {}, pdf path: {}", wordPath, pdfPath);
         if (EleCommonUtil.isWinOs()) {
-            File inputWord = new File(wordPath);
-            File outputFile = new File(pdfPath);
-            try (InputStream docxInputStream = Files.newInputStream(inputWord.toPath());
-                 OutputStream outputStream = Files.newOutputStream(outputFile.toPath())) {
-                IConverter build = LocalConverter.builder().build();
-                boolean execute;
-                if (wordPath.endsWith(".docx")) {
-                    execute = build.convert(docxInputStream)
-                            .as(DocumentType.DOCX)
-                            .to(outputStream)
-                            .as(DocumentType.PDF).schedule().get();
-                } else {
-                    execute = build.convert(docxInputStream)
-                            .as(DocumentType.DOC)
-                            .to(outputStream)
-                            .as(DocumentType.PDF).schedule().get();
+            try {
+                String libOfficePath = installPath + "/LibreOffice/program/soffice.exe";
+                if (!FileUtil.exist(libOfficePath)) {
+                    log.error("libOfficePath does not exist");
+                    throw new BizException("请联系管理员升级数据库组件");
+                }
+                String pdfParentPath = FileUtil.getParent(pdfPath, 1);
+                StringBuilder command = new StringBuilder();
+                command.append(libOfficePath).append(" --headless --convert-to pdf --outdir")
+                        .append(" ").append(pdfParentPath).append(" ").append(wordPath);
+                Process process = RuntimeUtil.exec(command.toString());
+                process.waitFor();
+                if (process.exitValue() != 0) {
+                    log.error("word文件 {} 转换失败", wordPath);
+                    throw new BizException("word文件转换失败");
+                } else {
+                    String wordMainName = FileUtil.mainName(wordPath);
+                    String pdfTmpPath = pdfParentPath + "/" + wordMainName + ".pdf";
+                    FileUtil.move(new File(pdfTmpPath), new File(pdfPath), true);
                 }
-                Assert.isTrue(execute, "转换失败");
-                log.info("转换完毕 targetPath = {}", outputFile.getAbsolutePath());
-                build.shutDown();
             } catch (Exception e) {
-                log.error("[documents4J] word转pdf失败:{}", e.toString());
-                String info = StrFormatter.format("word文档{}转换成pdf文档{}失败", wordPath, pdfPath);
-                throw new BizException(info + "，原因" + e.getMessage(), e);
+                log.error(e.getMessage(), e);
+                throw new BizException(e.getMessage());
             }
+
         } else {
             try {
                 StringBuilder command = new StringBuilder();