Some test text!
Welcome to PDFTron. You can start with WebViewer in an Angular project from scratch or integrate it into an existing application.
This guide will help you integrate a free trial of WebViewer into existing Angular applications. Your free trial includes unlimited trial usage and support from solution engineers.
An existing angular application, which also means you already have Angular CLI.
WebViewer:
From WebViewer.zip
extract the WebViewer
folder to your preferred location
Navigate to your angular project. Let's call the path to your project PROJ_ROOT
:
PROJ_ROOT = path/to/your/angular/project/
Create two new folders:
Inside the PROJ_ROOT/src
folder, create a new folder called wv-resources
.
Inside the PROJ_ROOT/src/app
folder, create a new folder called webviewer
.
From the WebViewer
folder you extracted in step 1. copy the lib
folder into PROJ_ROOT/src/wv-resources/
Update the angular.json
file inside your project's root folder at PROJ_ROOT/
to update assets and scripts under the options for build
.
{
//...
"assets": [
// existing assets can remain as they are
"src/wv-resources/lib"
],
"scripts": [
// other scripts you may have
"src/wv-resources/lib/webviewer.min.js"
]
//...
}
Inside the PROJ_ROOT/src/app/webviewer/
folder create three new files - webviewer.component.html
, webviewer.component.css
, webviewer.component.ts
:
webviewer.component.html
<!-- `webviewer.component.html` -->
<!-- Simple DOM element for WebViewer to populate -->
<div class="page">
<div class="header">WebViewer</div>
<div #viewer class="viewer"></div>
</div>
webviewer.component.css
/* `webviewer.component.css` */
/* Change this to suit your viewing needs*/
.page {
display: flex;
flex-direction: column;
width: 100%;
height: 100%;
}
.header {
height: 60px;
padding: 8px 8px 8px 16px;
background: #00a5e4;
box-sizing: border-box;
font-size: 1.2em;
line-height: 44px;
color: white;
}
app-webviewer {
flex: 1;
margin: 8px;
-webkit-box-shadow: 1px 1px 10px #999;
box-shadow: 1px 1px 10px #999;
}
.viewer { width: 100%; height: 600px; }
webviewer.component.ts
import { Component, ViewChild, OnInit, ElementRef, AfterViewInit } from '@angular/core';
declare const WebViewer: any;
@Component({
selector: 'web-viewer',
templateUrl: './webviewer.component.html',
styleUrls: ['./webviewer.component.css']
})
export class WebViewerComponent implements OnInit, AfterViewInit {
// Syntax if using Angular 8+
// true or false depending on code
@ViewChild('viewer', {static: true / false}) viewer: ElementRef;
// Syntax if using Angular 7 and below
@ViewChild('viewer') viewer: ElementRef;
wvInstance: any;
ngOnInit() {
this.wvDocumentLoadedHandler = this.wvDocumentLoadedHandler.bind(this);
}
wvDocumentLoadedHandler(): void {
// you can access docViewer object for low-level APIs
const { documentViewer, annotationManager, Annotations } = this.wvInstance.Core;
// and access classes defined in the WebViewer iframe
const rectangle = new Annotations.RectangleAnnotation();
rectangle.PageNumber = 1;
rectangle.X = 100;
rectangle.Y = 100;
rectangle.Width = 250;
rectangle.Height = 250;
rectangle.StrokeThickness = 5;
rectangle.Author = annotationManager.getCurrentUser();
annotationManager.addAnnotation(rectangle);
annotationManager.drawAnnotations(rectangle.PageNumber);
// see https://www.pdftron.com/api/web/WebViewerInstance.html for the full list of low-level APIs
}
ngAfterViewInit(): void {
// The following code initiates a new instance of WebViewer.
WebViewer({
path: '../../wv-resources/lib',
initialDoc: 'https://pdftron.s3.amazonaws.com/downloads/pl/webviewer-demo.pdf'
}, this.viewer.nativeElement).then(instance => {
this.wvInstance = instance;
// now you can access APIs through this.webviewer.getInstance()
instance.UI.openElement('notesPanel');
// see https://www.pdftron.com/documentation/web/guides/ui/apis
// for the full list of APIs
// or listen to events from the viewer element
this.viewer.nativeElement.addEventListener('pageChanged', (e) => {
const [ pageNumber ] = e.detail;
console.log(`Current page is ${pageNumber}`);
});
// or from the docViewer instance
instance.Core.documentViewer.addEventListener('annotationsLoaded', () => {
console.log('annotations loaded');
});
instance.Core.documentViewer.addEventListener('documentLoaded', this.wvDocumentLoadedHandler)
})
}
}
At this point, the structure of your PROJ_ROOT/src/app/
directory should be similar to:
my-app
├── angular.json
├── CONTRIBUTING.md
├── e2e
├── LICENSE
├── node_modules
│ └── ...
├── package.json
├── README.md
├── src
│ ├── app
│ │ ├── webviewer
│ │ │ ├── webviewer.component.html
│ │ │ ├── webviewer.component.css
│ │ │ └── webviewer.component.ts
│ │ └── ... app component/module files
│ ├── wv-resources
│ │ └── lib
│ │ └── webviewer.min.js
│ └── ...
└── ...
Inside of app.module.ts
in the PROJ_ROOT/src/app/
folder import webviewer component:
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
// Your other imports
import { AppComponent } from './app.component';
+import { WebViewerComponent } from './webviewer/webviewer.component';
@NgModule({
declarations: [
AppComponent,
+ WebViewerComponent
],
imports: [
BrowserModule
],
providers: [],
bootstrap: [ AppComponent ]
})
export class AppModule { }
Inside of app.component.html
in the PROJ_ROOT/src/app
folder place <web-viewer>
tag:
<!--The content below is only a placeholder and can be replaced.-->
<div style="text-align:center">
<h1>
Welcome to {{ title }}!
</h1>
</div>
<!-- Place the webviewer component wherever you need
in your application. Remember to style the component
using webviewer.component.css to suit your needs -->
+<web-viewer></web-viewer>
You can test that the WebViewer is now part of your application by running the following:
ng serve
In your browser, go to localhost:4200
to see the WebViewer in action.
Unable to load WebViewer Find out more about possible solutions to errors in loading WebViewer in your angular project.
Get the answers you need: Support
PDFTron SDK
COMPANY