diff --git a/src/js/controller/read-sandbox.js b/src/js/controller/read-sandbox.js
index b7a3b81..af2da14 100644
--- a/src/js/controller/read-sandbox.js
+++ b/src/js/controller/read-sandbox.js
@@ -30,6 +30,8 @@
         scaleToFit();
     };
 
+    window.addEventListener('resize', scaleToFit);
+
     /**
      * Parse email body and generate conversation nodes
      * @param  {Object} email The email object
diff --git a/src/js/controller/read.js b/src/js/controller/read.js
index d763e3f..fdb7547 100644
--- a/src/js/controller/read.js
+++ b/src/js/controller/read.js
@@ -207,7 +207,7 @@ define(function(require) {
         };
     });
 
-    ngModule.directive('frameLoad', function($timeout) {
+    ngModule.directive('frameLoad', function($timeout, $window) {
         return function(scope, elm) {
             var iframe = elm[0];
 
@@ -220,6 +220,8 @@ define(function(require) {
                 }
             });
 
+            $window.addEventListener('resize', scaleToFit);
+
             iframe.onload = function() {
                 // set listeners
                 scope.$watch('state.mailList.selected.body', displayText);