diff --git a/GUI/MainWindow.xaml b/GUI/MainWindow.xaml
index 68824a02..01953ec8 100644
--- a/GUI/MainWindow.xaml
+++ b/GUI/MainWindow.xaml
@@ -380,6 +380,7 @@
         <KeyBinding Gesture="Ctrl+H" Command="{x:Static local:Commands.FitWindow}"/>
         <KeyBinding Gesture="Ctrl+A" Command="{x:Static local:Commands.SelectAll}"/>
         <KeyBinding Gesture="Ctrl+P" Command="{x:Static local:Commands.Preferences}"/>
+        <KeyBinding Gesture="Ctrl+S" Command="{x:Static local:Commands.ScaleImage}"/>
         <KeyBinding Gesture="Backspace" Command="{x:Static local:Commands.GoBack}"/>
         <KeyBinding Gesture="Alt+Left" Command="{x:Static local:Commands.GoBack}"/>
         <KeyBinding Gesture="Alt+Right" Command="{x:Static local:Commands.GoForward}"/>
@@ -421,6 +422,7 @@
         <CommandBinding Command="{x:Static local:Commands.CheckUpdates}" Executed="CheckUpdatesExec" CanExecute="CanExecuteUpdate"/>
         <CommandBinding Command="{x:Static local:Commands.StopPlayback}" Executed="StopPlaybackExec" CanExecute="CanExecutePlaybackControl"/>
         <CommandBinding Command="{x:Static local:Commands.Preferences}" Executed="PreferencesExec" CanExecute="CanExecuteAlways"/>
+        <CommandBinding Command="{x:Static local:Commands.ScaleImage}"  Executed="ScaleImageExec" CanExecute="CanExecuteScaleImage"/>
         <CommandBinding Command="{x:Static local:Commands.TroubleShooting}" Executed="TroubleShootingExec" CanExecute="CanExecuteAlways"/>
         <CommandBinding Command="{x:Static local:Commands.Descend}"     Executed="DescendExec" CanExecute="CanExecuteAlways"/>
         <CommandBinding Command="{x:Static local:Commands.Ascend}"      Executed="AscendExec" CanExecute="CanExecuteAlways"/>
diff --git a/GUI/MainWindow.xaml.cs b/GUI/MainWindow.xaml.cs
index 3c164448..31dfefa6 100644
--- a/GUI/MainWindow.xaml.cs
+++ b/GUI/MainWindow.xaml.cs
@@ -1321,6 +1321,16 @@ namespace GARbro.GUI
             dialog.ShowDialog();
         }
 
+        private void ScaleImageExec (object sender, ExecutedRoutedEventArgs e)
+        {
+            DownScaleImage.Value = !DownScaleImage.Get<bool>();
+        }
+
+        private void CanExecuteScaleImage (object sender, CanExecuteRoutedEventArgs e)
+        {
+            e.CanExecute = ImageCanvas.Source != null;
+        }
+
         private void CanExecuteAlways (object sender, CanExecuteRoutedEventArgs e)
         {
             e.CanExecute = true;
@@ -1553,5 +1563,6 @@ namespace GARbro.GUI
         public static readonly RoutedCommand TroubleShooting = new RoutedCommand();
         public static readonly RoutedCommand Descend = new RoutedCommand();
         public static readonly RoutedCommand Ascend = new RoutedCommand();
+        public static readonly RoutedCommand ScaleImage = new RoutedCommand();
     }
 }