diff --git a/public/static/pdf/web/viewer.js b/public/static/pdf/web/viewer.js
index ff47ee580..1994141c8 100644
--- a/public/static/pdf/web/viewer.js
+++ b/public/static/pdf/web/viewer.js
@@ -6664,9 +6664,13 @@ var PDFPageView = function () {
         // //判断分辨率
         // if (screen.width+"*"+screen.height === '800*600' ){
         // }
-
-
-
+        var screenHeight = window.screen.height;
+        var screenWidth = window.screen.width;
+        if((screenHeight>screenWidth) && (screenWidth>480 && screenWidth <= 1440)){
+          defaultSettings.watermark_fontsize = '20px';
+          defaultSettings.watermark_width = 60;
+          defaultSettings.watermark_height = 40;
+        }
         var oTemp = document.createDocumentFragment();
 
         //获取页面最大宽度