diff --git a/app/dragManager.js b/app/dragManager.js
index b4c7fa11..c8a02fcf 100644
--- a/app/dragManager.js
+++ b/app/dragManager.js
@@ -1,3 +1,6 @@
+/* global MAXFILESIZE */
+const { bytes } = require('./utils');
+
 export default function(state, emitter) {
   emitter.on('DOMContentLoaded', () => {
     document.body.addEventListener('dragover', event => {
@@ -13,10 +16,19 @@ export default function(state, emitter) {
         if (target.files.length === 0) {
           return;
         }
-        if (target.files.length > 1 || target.files[0].size === 0) {
+        if (target.files.length > 1) {
           return alert(state.translate('uploadPageMultipleFilesAlert'));
         }
         const file = target.files[0];
+        if (file.size === 0) {
+          return;
+        }
+        if (file.size > MAXFILESIZE) {
+          window.alert(
+            state.translate('fileTooBig', { size: bytes(MAXFILESIZE) })
+          );
+          return;
+        }
         emitter.emit('upload', { file, type: 'drop' });
       }
     });