diff --git a/dist/jquery.sketchable.memento.min.js b/dist/jquery.sketchable.memento.min.js
index b0ff627..94a4c43 100644
--- a/dist/jquery.sketchable.memento.min.js
+++ b/dist/jquery.sketchable.memento.min.js
@@ -1 +1 @@
-!function(a){function b(b){function c(a,c){b.sketchable("handler",function(b,d){d.sketch.clear(),d.sketch.context.drawImage(a,0,0),d.strokes=c.strokes.slice(),d.sketch.callStack=c.callStack.slice()})}function d(a){if(a.ctrlKey)switch(a.which){case 26:a.shiftKey?g.redo():g.undo();break;case 25:g.redo()}}var e=[],f=-1,g=this;this.undo=function(){return f>0&&(f--,this.restore()),this},this.redo=function(){return f<e.length-1&&(f++,this.restore()),this},this.reset=function(){return e=[],f=-1,this.save()},this.save=function(a){return b.sketchable("handler",function(b,c){a&&a.identifier>0?e[f].strokes=c.strokes.slice():(e.push({image:b.get(0).toDataURL(),strokes:c.strokes.slice(),callStack:c.sketch.callStack.slice()}),f++)}),this},this.state=function(){return JSON.parse(JSON.stringify(e[f]))},this.restore=function(a){a||(a=e[f]);var b=new Image;return b.src=a.image,b.onload=function(){c(this,a)},this},this.init=function(){return a(document).off("keypress",d),a(document).on("keypress",d),this.save()},this.destroy=function(){return a(document).off("keypress",d),this.reset()}}var c="sketchable";a.fn.sketchable.plugins.memento=function(d){for(var e={clear:function(a,b){b.memento.reset()},mouseup:function(a,b,c){b.memento.save(c)},destroy:function(a,b){b.memento.destroy()}},f="mouseup clear destroy".split(" "),g=0;g<f.length;g++){var h=f[g];d.sketchable("decorate",h,e[h],"memento")}a.extend(a.fn.sketchable.api,{memento:{undo:function(){var b=a(this).data(c);return b.memento.undo(),d},redo:function(){var b=a(this).data(c);return b.memento.redo(),d},save:function(){var b=a(this).data(c);return b.memento.save(),d},state:function(){var b=a(this).data(c);return b.memento.state()},restore:function(b){var e=a(this).data(c);return e.memento.restore(b),d}}});var i=d.sketchable("data");i.memento=new b(d),i.memento.init()}}(jQuery);
\ No newline at end of file
+!function(a){function b(b){function c(a,c){b.sketchable("handler",function(b,d){d.sketch.clear(),d.sketch.context.drawImage(a,0,0),d.strokes=c.strokes.slice(),d.sketch.callStack=c.callStack.slice()})}function d(a){b.sketchable("handler",function(b,c){a&&a.identifier>0?f[g].strokes=c.strokes.slice():(f.push({image:b.get(0).toDataURL(),strokes:c.strokes.slice(),callStack:c.sketch.callStack.slice()}),g++)})}function e(a){if(a.ctrlKey)switch(a.which){case 26:a.shiftKey?h.redo():h.undo();break;case 25:h.redo()}}var f=[],g=-1,h=this;this.undo=function(){return g>0&&(g--,this.restore(),b.sketchable("trigger","mementoundo")),this},this.redo=function(){return g<f.length-1&&(g++,this.restore(),b.sketchable("trigger","mementoredo")),this},this.reset=function(){return f=[],g=-1,b.sketchable("trigger","mementoreset"),d(),this},this.save=function(a){return d(a),b.sketchable("trigger","mementosave"),this},this.state=function(){return JSON.parse(JSON.stringify(f[g]))},this.restore=function(a){a||(a=f[g]);var d=new Image;return d.src=a.image,d.onload=function(){c(this,a),b.sketchable("trigger","mementochange")},this},this.init=function(){return a(document).off("keypress",e),a(document).on("keypress",e),b.sketchable("trigger","mementoinit"),d(),this},this.destroy=function(){return a(document).off("keypress",e),b.sketchable("trigger","mementodestroy"),this.reset()}}var c="sketchable";a.fn.sketchable.plugins.memento=function(d){for(var e={clear:function(a,b){b.memento.reset()},mouseup:function(a,b,c){b.memento.save(c)},destroy:function(a,b){b.memento.destroy()}},f="mouseup clear destroy".split(" "),g=0;g<f.length;g++){var h=f[g];d.sketchable("decorate",h,e[h],"memento")}a.extend(a.fn.sketchable.api,{memento:{undo:function(){var b=a(this).data(c);return b.memento.undo(),d},redo:function(){var b=a(this).data(c);return b.memento.redo(),d},save:function(){var b=a(this).data(c);return b.memento.save(),d},state:function(){var b=a(this).data(c);return b.memento.state()},restore:function(b){var e=a(this).data(c);return e.memento.restore(b),d}}});var i=d.sketchable("data");i.memento=new b(d),i.memento.init()}}(jQuery);
\ No newline at end of file
diff --git a/dist/sketchable.memento.min.js b/dist/sketchable.memento.min.js
index 326f81a..69f4dde 100644
--- a/dist/sketchable.memento.min.js
+++ b/dist/sketchable.memento.min.js
@@ -1 +1 @@
-!function(a){function b(a){function b(b,c){a.handler(function(a,d){d.sketch.clear(),d.sketch.context.drawImage(b,0,0),d.strokes=c.strokes.slice(),d.sketch.callStack=c.callStack.slice()})}function c(a){if(a.ctrlKey)switch(a.which){case 26:a.shiftKey?f.redo():f.undo();break;case 25:f.redo()}}var d=[],e=-1,f=this;this.undo=function(){return e>0&&(e--,this.restore()),this},this.redo=function(){return e<d.length-1&&(e++,this.restore()),this},this.reset=function(){return d=[],e=-1,this.save()},this.save=function(b){return a.handler(function(a,c){b&&b.identifier>0?d[e].strokes=c.strokes.slice():(d.push({image:a.toDataURL(),strokes:c.strokes.slice(),callStack:c.sketch.callStack.slice()}),e++)}),this},this.state=function(){return JSON.parse(JSON.stringify(d[e]))},this.restore=function(a){a||(a=d[e]);var c=new Image;return c.src=a.image,c.onload=function(){b(this,a)},this},this.init=function(){return Event.remove(document,"keypress",c),Event.add(document,"keypress",c),this.save()},this.destroy=function(){return Event.remove(document,"keypress",c),this.reset()}}var c="sketchable";Sketchable.prototype.plugins.memento=function(a){for(var d={clear:function(a,b){b.memento.reset()},mouseup:function(a,b,c){b.memento.save(c)},destroy:function(a,b){b.memento.destroy()}},e="mouseup clear destroy".split(" "),f=0;f<e.length;f++){var g=e[f];a.decorate(g,d[g],"memento")}deepExtend(a,{memento:{undo:function(){var b=dataBind(a.elem)[c];return b.memento.undo(),a},redo:function(){var b=dataBind(a.elem)[c];return b.memento.redo(),a},save:function(){var b=dataBind(a.elem)[c];return b.memento.save(),a},state:function(){var b=dataBind(a.elem)[c];return b.memento.state()},restore:function(b){var d=dataBind(a.elem)[c];return d.memento.restore(b),a}}});var h=dataBind(a.elem)[c];h.memento=new b(a),h.memento.init()}}(this);
\ No newline at end of file
+!function(a){function b(a){function b(b,c){a.handler(function(a,d){d.sketch.clear(),d.sketch.context.drawImage(b,0,0),d.strokes=c.strokes.slice(),d.sketch.callStack=c.callStack.slice()})}function c(b){a.handler(function(a,c){b&&b.identifier>0?e[f].strokes=c.strokes.slice():(e.push({image:a.toDataURL(),strokes:c.strokes.slice(),callStack:c.sketch.callStack.slice()}),f++)})}function d(a){if(a.ctrlKey)switch(a.which){case 26:a.shiftKey?g.redo():g.undo();break;case 25:g.redo()}}var e=[],f=-1,g=this;this.undo=function(){return f>0&&(f--,this.restore(),a.trigger("mementoundo")),this},this.redo=function(){return f<e.length-1&&(f++,this.restore(),a.trigger("mementoredo")),this},this.reset=function(){return e=[],f=-1,c(),this},this.save=function(b){return c(b),a.trigger("mementosave"),this},this.state=function(){return JSON.parse(JSON.stringify(e[f]))},this.restore=function(c){c||(c=e[f]);var d=new Image;return d.src=c.image,d.onload=function(){b(this,c),a.trigger("mementochange")},this},this.init=function(){return Event.remove(document,"keypress",d),Event.add(document,"keypress",d),a.trigger("mementoinit"),c(),this},this.destroy=function(){return Event.remove(document,"keypress",d),a.trigger("mementodestroy"),this.reset()}}var c="sketchable";Sketchable.prototype.plugins.memento=function(a){for(var d={clear:function(a,b){b.memento.reset()},mouseup:function(a,b,c){b.memento.save(c)},destroy:function(a,b){b.memento.destroy()}},e="mouseup clear destroy".split(" "),f=0;f<e.length;f++){var g=e[f];a.decorate(g,d[g],"memento")}deepExtend(a,{memento:{undo:function(){var b=dataBind(a.elem)[c];return b.memento.undo(),a},redo:function(){var b=dataBind(a.elem)[c];return b.memento.redo(),a},save:function(){var b=dataBind(a.elem)[c];return b.memento.save(),a},state:function(){var b=dataBind(a.elem)[c];return b.memento.state()},restore:function(b){var d=dataBind(a.elem)[c];return d.memento.restore(b),a}}});var h=dataBind(a.elem)[c];h.memento=new b(a),h.memento.init()}}(this);
\ No newline at end of file
diff --git a/src/jquery.sketchable.memento.js b/src/jquery.sketchable.memento.js
index d718ba8..db1bc53 100644
--- a/src/jquery.sketchable.memento.js
+++ b/src/jquery.sketchable.memento.js
@@ -1,5 +1,5 @@
 /*!
- * Memento plugin for jQuery Sketchable | v2.2 | Luis A. Leiva | MIT license
+ * Memento plugin for jQuery Sketchable | v2.3 | Luis A. Leiva | MIT license
  */
 
 /* eslint-env browser */
@@ -25,6 +25,7 @@
     var stack = [];
     var stpos = -1;
     var self  = this;
+
     /**
      * Update state.
      * @param {Image} snapshot - Image object.
@@ -47,6 +48,32 @@
         data.sketch.callStack = state.callStack.slice();
       });
     }
+
+    /**
+     * Update state.
+     * @param {Image} snapshot - Image object.
+     * @param {object} state - State associated with snapshot.
+     * @param {object} state.strokes - Strokes data.
+     * @param {object} state.callStack - Actions history.
+     * @private
+     */
+    function save(ev) {
+      $instance.sketchable('handler', function(elem, data) {
+        // With multitouch events, only the first event should be used to store a snapshot.
+        // Then, the subsequent multitouch events must update current strokes data.
+        if (ev && ev.identifier > 0) {
+          stack[stpos].strokes = data.strokes.slice();
+        } else {
+          stack.push({
+            image: elem.get(0).toDataURL(),
+            strokes: data.strokes.slice(),
+            callStack: data.sketch.callStack.slice(),
+          });
+          stpos++;
+        }
+      });
+    }
+
     /**
      * Key event manager.
      *  - Undo: "Ctrl + Z"
@@ -70,6 +97,7 @@
         }
       }
     }
+
     /**
      * Goes back to the last saved state, if available.
      * @return {MementoCanvas} Class instance.
@@ -78,6 +106,8 @@
       if (stpos > 0) {
         stpos--;
         this.restore();
+
+        $instance.sketchable('trigger', 'mementoundo');
       }
       return this;
     };
@@ -89,6 +119,8 @@
       if (stpos < stack.length - 1) {
         stpos++;
         this.restore();
+
+        $instance.sketchable('trigger', 'mementoredo');
       }
       return this;
     };
@@ -99,8 +131,13 @@
     this.reset = function() {
       stack = [];
       stpos = -1;
+
+      $instance.sketchable('trigger', 'mementoreset');
+
       // Save blank state afterward.
-      return this.save();
+      save();
+
+      return this;
     };
     /**
      * Save current state.
@@ -108,20 +145,10 @@
      * @return {MementoCanvas} Class instance.
      */
     this.save = function(ev) {
-      $instance.sketchable('handler', function(elem, data) {
-        // With multitouch events, only the first event should be used to store a snapshot.
-        // Then, the subsequent multitouch events must update current strokes data.
-        if (ev && ev.identifier > 0) {
-          stack[stpos].strokes = data.strokes.slice();
-        } else {
-          stack.push({
-            image: elem.get(0).toDataURL(),
-            strokes: data.strokes.slice(),
-            callStack: data.sketch.callStack.slice(),
-          });
-          stpos++;
-        }
-      });
+      save(ev);
+
+      $instance.sketchable('trigger', 'mementosave');
+
       return this;
     };
     /**
@@ -145,7 +172,10 @@
       snapshot.src = state.image;
       snapshot.onload = function() {
         draw(this, state);
+
+        $instance.sketchable('trigger', 'mementochange');
       };
+
       return this;
     };
     /**
@@ -155,8 +185,13 @@
     this.init = function() {
       $(document).off('keypress', keyManager);
       $(document).on('keypress', keyManager);
+
+      $instance.sketchable('trigger', 'mementoinit');
+
       // Save blank state to begin with.
-      return this.save();
+      save();
+
+      return this;
     };
     /**
      * Destroy instance: reset state and remove key event listeners.
@@ -164,9 +199,11 @@
      */
     this.destroy = function() {
       $(document).off('keypress', keyManager);
+
+      $instance.sketchable('trigger', 'mementodestroy');
+
       return this.reset();
     };
-
   }
 
   /**
@@ -256,7 +293,7 @@
           data.memento.restore(state);
           return $instance;
         },
-      },
+      }
     });
 
     // Initialize plugin here.
diff --git a/src/sketchable.memento.js b/src/sketchable.memento.js
index 87813b1..d684f2d 100644
--- a/src/sketchable.memento.js
+++ b/src/sketchable.memento.js
@@ -1,5 +1,5 @@
 /*!
- * Memento plugin for Sketchable | v2.2 | Luis A. Leiva | MIT license
+ * Memento plugin for Sketchable | v2.3 | Luis A. Leiva | MIT license
  */
 
 // XXX: Requires `sketchable.utils.js` to be loaded first.
@@ -27,6 +27,7 @@
     var stack = [];
     var stpos = -1;
     var self  = this;
+
     /**
      * Update state.
      * @param {image} snapshot - Image object.
@@ -49,6 +50,32 @@
         data.sketch.callStack = state.callStack.slice();
       });
     }
+
+    /**
+     * Update state.
+     * @param {Image} snapshot - Image object.
+     * @param {object} state - State associated with snapshot.
+     * @param {object} state.strokes - Strokes data.
+     * @param {object} state.callStack - Actions history.
+     * @private
+     */
+    function save(ev) {
+      instance.handler(function(elem, data) {
+        // With multitouch events, only the first event should be used to store a snapshot.
+        // Then, the subsequent multitouch events must update current strokes data.
+        if (ev && ev.identifier > 0) {
+          stack[stpos].strokes = data.strokes.slice();
+        } else {
+          stack.push({
+            image: elem.toDataURL(),
+            strokes: data.strokes.slice(),
+            callStack: data.sketch.callStack.slice(),
+          });
+          stpos++;
+        }
+      });
+    }
+
     /**
      * Key event manager.
      *  - Undo: "Ctrl + Z"
@@ -80,6 +107,8 @@
       if (stpos > 0) {
         stpos--;
         this.restore();
+
+        instance.trigger('mementoundo');
       }
       return this;
     };
@@ -91,6 +120,8 @@
       if (stpos < stack.length - 1) {
         stpos++;
         this.restore();
+
+        instance.trigger('mementoredo');
       }
       return this;
     };
@@ -101,8 +132,11 @@
     this.reset = function() {
       stack = [];
       stpos = -1;
+
       // Save blank state afterward.
-      return this.save();
+      save();
+
+      return this;
     };
     /**
      * Save current state.
@@ -110,20 +144,10 @@
      * @return {MementoCanvas} Class instance.
      */
     this.save = function(ev) {
-      instance.handler(function(elem, data) {
-        // With multitouch events, only the first event should be used to store a snapshot.
-        // Then, the subsequent multitouch events must update current strokes data.
-        if (ev && ev.identifier > 0) {
-          stack[stpos].strokes = data.strokes.slice();
-        } else {
-          stack.push({
-            image: elem.toDataURL(),
-            strokes: data.strokes.slice(),
-            callStack: data.sketch.callStack.slice(),
-          });
-          stpos++;
-        }
-      });
+      save(ev);
+
+      instance.trigger('mementosave');
+
       return this;
     };
     /**
@@ -147,7 +171,10 @@
       snapshot.src = state.image;
       snapshot.onload = function() {
         draw(this, state);
+
+        instance.trigger('mementochange');
       };
+
       return this;
     };
     /**
@@ -157,8 +184,13 @@
     this.init = function() {
       Event.remove(document, 'keypress', keyManager);
       Event.add(document, 'keypress', keyManager);
+
+      instance.trigger('mementoinit');
+
       // Save blank state to begin with.
-      return this.save();
+      save();
+
+      return this;
     };
     /**
      * Destroy instance: reset state and remove key event listeners.
@@ -166,6 +198,9 @@
      */
     this.destroy = function() {
       Event.remove(document, 'keypress', keyManager);
+
+      instance.trigger('mementodestroy');
+
       return this.reset();
     };