diff --git a/src/drawer.js b/src/drawer.js
index 9440c280..73772a88 100644
--- a/src/drawer.js
+++ b/src/drawer.js
@@ -323,7 +323,6 @@ $.Drawer.prototype = {
                 this.sketchCanvas.height = sketchCanvasSize.y;
                 this.sketchContext = this.sketchCanvas.getContext( "2d" );
 
-                // FIXME: should check if any tiled image get rotated as well.
                 // If the viewport is not currently rotated, the sketchCanvas
                 // will have the same size as the main canvas. However, if
                 // the viewport get rotated later on, we will need to resize it.
@@ -621,8 +620,7 @@ $.Drawer.prototype = {
     // private
     _calculateSketchCanvasSize: function() {
         var canvasSize = this._calculateCanvasSize();
-        if (this.viewport.getRotation() === 0 &&
-            !this.viewer.world._hasRotatedItem()) {
+        if (this.viewport.getRotation() === 0) {
             return canvasSize;
         }
         // If the viewport is rotated, we need a larger sketch canvas in order
diff --git a/src/tiledimage.js b/src/tiledimage.js
index c6659c77..ca6b8eeb 100644
--- a/src/tiledimage.js
+++ b/src/tiledimage.js
@@ -550,20 +550,8 @@ $.extend($.TiledImage.prototype, $.EventSource.prototype, /** @lends OpenSeadrag
     },
 
     // private
-    // Convert rectangle in tiled image coordinates to viewport coordinates.
-    _tiledImageToViewportRectangle: function(rect) {
-        var scale = this._scaleSpring.current.value;
-        return new $.Rect(
-            rect.x * scale + this._xSpring.current.value,
-            rect.y * scale + this._ySpring.current.value,
-            rect.width * scale,
-            rect.height * scale,
-            rect.degrees)
-            .rotate(this.getRotation(), this._getRotationPoint(true));
-    },
-
-    // private
-    // Convert rectangle in viewport coordinates to tiled image coordinates.
+    // Convert rectangle in viewport coordinates to this tiled image point
+    // coordinates (x in [0, 1] and y in [0, aspectRatio])
     _viewportToTiledImageRectangle: function(rect) {
         var scale = this._scaleSpring.current.value;
         rect = rect.rotate(-this.getRotation(), this._getRotationPoint(true));
diff --git a/src/world.js b/src/world.js
index ad6285d9..e68590b3 100644
--- a/src/world.js
+++ b/src/world.js
@@ -436,16 +436,6 @@ $.extend( $.World.prototype, $.EventSource.prototype, /** @lends OpenSeadragon.W
          * @property {?Object} userData - Arbitrary subscriber-defined object.
          */
         this.raiseEvent( 'remove-item', { item: item } );
-    },
-
-    // private
-    _hasRotatedItem: function() {
-        for (var i = 0; i < this._items.length; i++) {
-            if (this._items[i].getRotation() !== 0) {
-                return true;
-            }
-        }
-        return false;
     }
 });