fix build viewer

ng2-components/ng2-alfresco-viewer/main.ts

@@ -1,3 +1,20 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 import {bootstrap} from 'angular2/platform/browser';
 import {Ng2AlfrescoViewerComponent} from './ng2-alfresco-viewer';
 

ng2-components/ng2-alfresco-viewer/src/ng2-alfresco-viewer.component.ts

@@ -15,12 +15,14 @@
  * limitations under the License.
  */
 
-import {Component} from 'angular2/core';
+import { Component } from 'angular2/core';
+
+declare let PDFJS: any;
 
 @Component({
     selector: 'ng2-alfresco-viewer',
     styles: [
-      `
+        `
               :host h1 {
                   font-size:22px
               }
@@ -42,7 +44,7 @@ export class Ng2AlfrescoViewerComponent {
                 //
                 // Prepare canvas using PDF page dimensions
                 //
-                let  canvas:any = document.getElementById('the-canvas');
+                let canvas: any = document.getElementById('the-canvas');
                 let context = canvas.getContext('2d');
                 canvas.height = viewport.height;
                 canvas.width = viewport.width;