> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/web/get-started/samples/viewing.md).

# Viewing Office Docs with WebViewer

View & display a PDF, Office document with WebViewer (no servers or other external dependencies required) in a browser using JavaScript. Fast & reliable document viewing for 30+ file types across web,

{% hint style="info" %}
**Requirements**

*These packages are required to use these features in production. Trial keys have unlimited access to all features*

<a href="https://apryse.com/capabilities#OfficeConversion" class="button primary">Package: Office Conversion</a><a href="https://showcase.apryse.com/office-documents" class="button primary">Live demo</a>
{% endhint %}

This JavaScript sample lets you display and view a PDF, DOCX, XLSX or PPTX document in our WebViewer (no servers or other external dependencies required). It shows you how to call the WebViewer constructor to instantiate and load a document. You can load local/remote files of your choice. This sample works on all browsers (including IE11) and mobile devices without using plug-ins.

Learn more about our [Web SDK](/web/get-started/guides.md).

{% tabs %}
{% tab title="JavaScript" %}
{% code lineNumbers="true" %}

```js
// eslint-disable-next-line no-undef
const WebViewerConstructor = isWebComponent() ? WebViewer.WebComponent : WebViewer;

WebViewerConstructor(
  {
    path: '../../../lib',
    initialDoc: 'https://pdftron.s3.amazonaws.com/downloads/pl/demo-annotated.pdf',
  },
  document.getElementById('viewer')
).then(instance => {
  samplesSetup(instance);

  document.getElementById('select').onchange = e => {
    instance.UI.loadDocument(e.target.value);
  };

  document.getElementById('file-picker').onchange = e => {
    const file = e.target.files[0];
    if (file) {
      instance.UI.loadDocument(file);
    }
  };

  document.getElementById('url-form').onsubmit = e => {
    e.preventDefault();
    instance.UI.loadDocument(document.getElementById('url').value);
  };
});
```

{% endcode %}
{% endtab %}
{% endtabs %}


---

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```
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