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Get started with WebViewer & Vue

Welcome to PDFTron. This guide will help you integrate a free trial of WebViewer into VueJS applications on the browser. It will help you clone the Vue sample repository, walk through the project structure, and show you how to call other WebViewer API. Your free trial includes unlimited trial usage and support from solution engineers.


linkInitial setup

  1. Clone the webviewer-vue-sample repository:

    git clone
  2. Enter the directory and run npm install:

    cd webviewer-vue-sample
    npm install

    This will automatically download and extract the PDFTron WebViewer Package.

You are now ready to run the sample or use more WebViewer APIs.

linkSample overview

After initial setup, the webviewer-vue-sample directory should be laid out like this:

├── package.json
├── package-lock.json
├── babel.config.js
├── node_modules
│   ├── ...
├── public  
│   ├── lib
│   │    ├── ...
│   ├── index.html
│   └── favicon.ico
└── src
    ├── assets
    │   ├── ...
    ├── components
    │   └── WebViewer.vue
    ├── App.vue
    └── main.js

Notable files and directories include:

LICENSELists the copyright and license information.
package.jsonLists the manifest of the project and contains the author/version metadata.
publicContains the static index.html page that is loaded onto the browser and all other resources for the VueJS project including the icon. This is also where the Webviewer lib is extracted to when you run npm install.
srcContains all the JavaScript files and assets for the VueJS project
src/App.jsContains the App component which imports the WebViewer.vue component, adds styling and places it on the HTML page using a <div> tag.
src/components/WebViewer.vueThis is where the WebViewer API calls are placed once the component is mounted.

linkRun the sample

  1. Run the application by executing:

    npm run serve

    Then open a browser and go to localhost:8080 to see the application.

    Your app should look like this:

    Vue WebViewer Sample

    Note: If your browser does not open automatically to open the WebViewer, navigate to localhost:8080 to see the project.

linkUse more WebViewer APIs

To call more WebViewer APIs, open /www/js/index.js in your favorite text editor and add the API calls to the callback for the WebViewer instantiation:

export default {
  name: 'WebViewer',
  props: {
    path: String,
    url: String
  mounted: function () {
      path: this.path,
      initialDoc: this.url, // replace with your own PDF file
    }, this.$refs.viewer).then((instance) => {
      // at this point, the viewer is 'ready'
      // call methods from instance, docViewer and annotManager as needed

      this.docViewer = instance.docViewer;
      this.annotManager = instance.annotManager;

      // you can also access major namespaces from the instance as follows:
      // var Tools = instance.Tools;
      // var Annotations = instance.Annotations;

      // now you can access APIs through `this.instance`

      // or listen to events from the viewer element
      this.docViewer.on('documentLoaded', () => {
         // call methods relating to the loaded document

For example, if you want to change the theme of the WebViewer to dark mode, you would add the following:


Execute npm run serve again and the theme of the viewer will change.

Vue Sample Dark

linkNext step

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