diff --git a/src/utils/kkFilePreview.js b/src/utils/kkFilePreview.js
index d4560b5e..ce83d9cf 100644
--- a/src/utils/kkFilePreview.js
+++ b/src/utils/kkFilePreview.js
@@ -3,14 +3,33 @@ import { USER_INFO } from '../store/mutation-types'
 import { Base64 } from 'js-base64'
 import md5 from 'md5'
 
+function fillZero (str) {
+  let realNum
+  if (str < 10) {
+    realNum = '0' + str
+  } else {
+    realNum = str
+  }
+  return realNum
+}
+
 /**
  * kkFile预览文件并添加水印
  * @param fileUrl
  */
 export const kkFilePreview = (fileUrl) => {
   const userInfo = Vue.ls.get(USER_INFO)
+  // 获取当前时间
+  const date = new Date()
+  const year = date.getFullYear()
+  const month = date.getMonth() + 1
+  const day = date.getDate()
+  const hour = date.getHours()
+  const minute = date.getMinutes()
+  const second = date.getSeconds()
+  const time = `${year}${fillZero(month)}${fillZero(day)}${fillZero(hour)}${fillZero(minute)}${fillZero(second)}`
   // 水印内容
-  const watermarkTxt = `${userInfo.username} ${userInfo.realname}`
+  const watermarkTxt = `${userInfo.username} ${userInfo.realname} ${time}`
   // 客户环境预览需要加的加密参数
   const watermarkSign = md5(watermarkTxt + 'cnhtc')
   const url = `${window._CONFIG.onlinePreviewDomainURL}?url=${encodeURIComponent(Base64.encode(fileUrl))}&watermarkTxt=${encodeURIComponent(watermarkTxt)}&watermarkSign=${watermarkSign}`