diff --git a/src/components/FileEcho.vue b/src/components/FileEcho.vue
index 10c14c73..f070926e 100644
--- a/src/components/FileEcho.vue
+++ b/src/components/FileEcho.vue
@@ -28,6 +28,7 @@ import { ACCESS_TOKEN } from '../store/mutation-types.js'
 import { downloadFile, getFileAccessHttpUrl } from '../api/manage.js'
 import { previewPdf } from '../utils/previewPdf.js'
 import { Base64 } from 'js-base64'
+import { kkFilePreview } from '../utils/kkFilePreview'
 
 // 支持预览的文件类型
 const CAN_PREVIEW_FILE_TYPE = ['pdf', 'image']
@@ -120,8 +121,7 @@ export default {
         return
       }
       // 其余可预览文件仍使用KKFile进行预览
-      const url = `${window._CONFIG.onlinePreviewDomainURL}?url=${encodeURIComponent(Base64.encode(fileFullUrl))}`
-      window.open(url)
+      kkFilePreview(fileFullUrl)
     },
     /**
      * 单个文件的下载功能
diff --git a/src/components/UploadFile.vue b/src/components/UploadFile.vue
index a4e19fee..3033f413 100644
--- a/src/components/UploadFile.vue
+++ b/src/components/UploadFile.vue
@@ -54,6 +54,7 @@ import { downloadFile, getFileAccessHttpUrl } from '@/api/manage'
 import { getFileInfo } from '@/api/api'
 import { previewPdf } from '@/utils/previewPdf'
 import Vue from 'vue'
+import { kkFilePreview } from '../utils/kkFilePreview'
 
 const FILE_TYPE_ALL = 'all'
 const FILE_TYPE_IMG = 'image'
@@ -327,8 +328,7 @@ export default {
         return
       }
       // 其余可预览文件仍使用KKFile进行预览
-      const url = `${window._CONFIG.onlinePreviewDomainURL}?url=${encodeURIComponent(Base64.encode(fileFullUrl))}`
-      window.open(url)
+      kkFilePreview(fileFullUrl)
     },
     handleDownload (file) {
       // 下载文件
diff --git a/src/components/jero/JUpload.vue b/src/components/jero/JUpload.vue
index 5e5d8884..8b0346de 100644
--- a/src/components/jero/JUpload.vue
+++ b/src/components/jero/JUpload.vue
@@ -48,6 +48,7 @@ import { ACCESS_TOKEN } from '@/store/mutation-types'
 import { getFileAccessHttpUrl, downloadFile } from '@/api/manage'
 import { getFileInfo } from '@/api/api'
 import { previewPdf } from '../../utils/previewPdf'
+import { kkFilePreview } from '../../utils/kkFilePreview'
 
 // eslint-disable-next-line no-undef
 // const Base64 = require('js-base64').Base64
@@ -459,8 +460,7 @@ export default {
         return
       }
       // 其余可预览文件仍使用KKFile进行预览
-      const url = `${window._CONFIG.onlinePreviewDomainURL}?url=${encodeURIComponent(Base64.encode(fileFullUrl))}`
-      window.open(url)
+      kkFilePreview(fileFullUrl)
     },
     getFileUrl (fileId) {
       return `${window._CONFIG.domianURL}/sys/common/download/${fileId}`
diff --git a/src/utils/kkFilePreview.js b/src/utils/kkFilePreview.js
new file mode 100644
index 00000000..c1a2f9b5
--- /dev/null
+++ b/src/utils/kkFilePreview.js
@@ -0,0 +1,19 @@
+import Vue from 'vue'
+import { USER_INFO } from '../store/mutation-types'
+import { Base64 } from 'js-base64'
+
+const md5 = require('md5')
+
+/**
+ * kkFile预览文件并添加水印
+ * @param fileUrl
+ */
+export const kkFilePreview = (fileUrl) => {
+  const userInfo = Vue.ls.get(USER_INFO)
+  // 水印内容
+  const watermarkTxt = `${userInfo.username} ${userInfo.realname}`
+  // 客户环境预览需要加的加密参数
+  const watermarkSign = md5(watermarkTxt, 'cnhtc')
+  const url = `${window._CONFIG.onlinePreviewDomainURL}?url=${encodeURIComponent(Base64.encode(fileUrl))}&watermarkTxt=${encodeURIComponent(watermarkTxt)}&watermarkSign=${watermarkSign}`
+  window.open(url)
+}
\ No newline at end of file
diff --git a/src/views/projectLibrary/specialProjectLibrary/modules/BasisDescriptionModal.vue b/src/views/projectLibrary/specialProjectLibrary/modules/BasisDescriptionModal.vue
index 44f0d7d3..6c8c6480 100644
--- a/src/views/projectLibrary/specialProjectLibrary/modules/BasisDescriptionModal.vue
+++ b/src/views/projectLibrary/specialProjectLibrary/modules/BasisDescriptionModal.vue
@@ -95,6 +95,7 @@ import { ACCESS_TOKEN } from '../../../../store/mutation-types'
 import { downloadFile, getFileAccessHttpUrl } from '../../../../api/manage'
 import { previewPdf } from '../../../../utils/previewPdf'
 import { Base64 } from 'js-base64'
+import { kkFilePreview } from '../../../../utils/kkFilePreview'
 
 export default {
   name: 'BasisDescriptionModal',
@@ -217,8 +218,7 @@ export default {
       }
       // word用KKfile预览
       if (canPreview && (fileSuffix === 'doc' || fileSuffix === 'docx')) {
-        const url = `${window._CONFIG.onlinePreviewDomainURL}?url=${encodeURIComponent(Base64.encode(fileFullUrl))}`
-        window.open(url)
+        kkFilePreview(fileFullUrl)
         return
       }
       // 如果都不能预览就下载
diff --git a/src/views/standardRegulationLibrary/commonPage/StandardDetailPage.vue b/src/views/standardRegulationLibrary/commonPage/StandardDetailPage.vue
index 7bd5b7ab..a52cf665 100644
--- a/src/views/standardRegulationLibrary/commonPage/StandardDetailPage.vue
+++ b/src/views/standardRegulationLibrary/commonPage/StandardDetailPage.vue
@@ -139,6 +139,7 @@ import { ACCESS_TOKEN } from '../../../store/mutation-types.js'
 import { downloadFile, getFileAccessHttpUrl } from '../../../api/manage.js'
 import { previewPdf } from '../../../utils/previewPdf.js'
 import { Base64 } from 'js-base64'
+import { kkFilePreview } from '../../../utils/kkFilePreview'
 
 // 国内标准权限
 const DomesticStandardPermission = {
@@ -396,8 +397,7 @@ export default {
         return
       }
       // 其余可预览文件仍使用KKFile进行预览
-      const url = `${window._CONFIG.onlinePreviewDomainURL}?url=${encodeURIComponent(Base64.encode(fileFullUrl))}`
-      window.open(url)
+      kkFilePreview(fileFullUrl)
     },
     /**
      * 无水印下载