diff --git a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java
index 13cfba0fb..2ee5ccc30 100644
--- a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java
+++ b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java
@@ -67,6 +67,7 @@ import com.jero.modules.system.service.ISysDepartService;
 import com.jero.modules.system.service.ISysUserService;
 import com.jero.modules.system.service.impl.SysCategoryServiceImpl;
 import com.jero.modules.system.service.impl.SysDictItemServiceImpl;
+import com.jero.modules.system.util.PDFUtils;
 import com.jero.modules.system.util.StringUtils;
 import com.jero.modules.tag.entity.OnlCgformArea;
 import com.jero.modules.tag.service.impl.OnlCgformAreaServiceImpl;
@@ -3882,6 +3883,7 @@ public class BussDocumentLibraryEOServiceImpl extends ServiceImpl<BussDocumentLi
      */
     @Override
     public void exportExcel(Map<String, Object> map, HttpServletResponse response, HttpServletRequest request) {
+        LoginUser loginUser = (LoginUser) SecurityUtils.getSubject().getPrincipal();
         String cut = (String) map.get("cut");
         //String flag = "file"为带文件导出标识
         String flag = (String) map.get("flag");
@@ -3997,6 +3999,12 @@ public class BussDocumentLibraryEOServiceImpl extends ServiceImpl<BussDocumentLi
                                     boolean b = CosBootUtil.doesObjectExist(url);
                                     if(b){
                                         InputStream download = CosBootUtil.download(url);
+                                        if(url.endsWith(".pdf") || url.endsWith(".PDF")){
+                                            String currentTime = sdf.format(new Date());
+                                            String waterContent = loginUser.getUsername() + " " + currentTime;
+                                            File newFile = PDFUtils.PDFWatermark(download,uploadpath,ossFile.getFileName(),waterContent);
+                                            download = new FileInputStream(newFile.getPath());
+                                        }
                                         copyFile(download, fileNowPath + File.separator + ossFile.getFileName());
                                     }
                                 }
@@ -4026,6 +4034,8 @@ public class BussDocumentLibraryEOServiceImpl extends ServiceImpl<BussDocumentLi
             IOUtils.closeQuietly(os);
             File file = new File(uploadpath + "/tempZip");
             FileUtil.deleteContents(file);
+            File fileTemp = new File(uploadpath + "/tempZip.zip");
+            FileUtil.deleteContents(fileTemp);
         }
     }