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Alfresco File Viewer Component

See it live: Viewer Quickstart


Before you start using this development framework, make sure you have installed all required software and done all the necessary configuration prerequisites.

If you plan using this component with projects generated by Angular CLI, please refer to the following article: Using ADF with Angular CLI


npm install ng2-alfresco-viewer

Configuring PDF.js library

In order to configure your webpack-enabled application with the PDF.js library please follow the next steps.

Install pdfjs-dist

npm install pdfjs-dist

Update vendors.ts by appending the following:

// PDF.js
const pdfjsLib = require('pdfjs-dist');
pdfjsLib.PDFJS.workerSrc = './pdf.worker.js';

The code above enables the "viewer" component and "compatibility" mode for all the browsers. It also configures the web worker for PDF.js library to render PDF files in the background.

Update the plugins section of the webpack.common.js file with the next lines:

new CopyWebpackPlugin([
        from: 'node_modules/pdfjs-dist/build/pdf.worker.js',
        to: 'pdf.worker.js'

The Viewer component now should be able displaying PDF files.

Basic usage

Using with node id:


Using with file url:



Attribute Options Default Description
fileNodeId string Node Id of the file to load
urlFile string If you want to load an external file that does not come from ECM you can use this Url where to load the file
urlBlob Blob If you want to load a Blob File
overlayMode boolean false If true show the Viewer full page over the present content otherwise will fit the parent div
showViewer boolean true Hide or show the viewer
showToolbar boolean true Hide or show the toolbars
displayName string You can specify the name of the file

Supported file formats

Type Extension
Media wav, Mp3, Mp4, WebM, Ogv
Images png, jpg, jpeg, gif, bmp
Text pdf, txt

PDF Conversion


Note for unsupported extensions the viewer will offer the possibility to convert to PDF if that kind of extension is supported by the content service renditions service

Custom extension handler

If you want to handle other file formats that are not yet supported by the ng2-alfresco-viewer you can define your own custom handler.

Below you can find an example with the use of extension-viewer if you can handle 3d files

    <extension-viewer [supportedExtensions]="['obj','3ds']" #extension>
        <template let-urlFileContent="urlFileContent" let-extension="extension">

Note: you need adding ng2-3d-editor dependency to your package.json file to make the example above work.

It is possible to define multiple extension-viewer templates:

    <extension-viewer [supportedExtensions]="['xls','xlsx']" #extension>
        <template let-urlFileContent="urlFileContent"  >
    <extension-viewer [supportedExtensions]="['txt']" #extension>
        <template  let-urlFileContent="urlFileContent" >               

Build from sources

You can build component from sources with the following commands:

npm install
npm run build

The build task rebuilds all the code, runs tslint, license checks and other quality check tools before performing unit testing.

NPM scripts

Command Description
npm run build Build component
npm run test Run unit tests in the console
npm run test-browser Run unit tests in the browser
npm run coverage Run unit tests and display code coverage report


Please check the demo folder for a demo project

cd demo
npm install
npm start


Apache Version 2.0