> 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/redaction-viewer.md).

# Redact Documents

Redact sensitive information programatically or using UI with redact pdf in JavaScript.

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

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

<a href="/web/get-started/readme.md" class="button primary">Web SDK</a><a href="https://apryse.com/capabilities#Redaction" class="button primary">Package: Redaction</a><a href="https://showcase.apryse.com/redaction" class="button primary">Live demo</a>
{% endhint %}

This JavaScript sample lets you permanently redact elements on a PDF document in a web browser with no servers or other external dependencies required. Users can highlight text or drag over a region in a document and permanently scrub the information by clicking the redaction button. In the case of MS Office files (DOCX, XLSX, PPTX), documents are converted to PDF format before the redactions are applied. 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).

### **Implementation steps**

To redact files with WebViewer:

Step 1: Follow [get started in your preferred web stack for WebViewer](/web/get-started/readme.md) Step 2: Add the sample code provided in this guide

{% 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://s3.amazonaws.com/pdftron/downloads/pl/legal-contract.pdf',
    fullAPI: true,
    enableRedaction: true,
  },
  document.getElementById('viewer')
).then(instance => {
  samplesSetup(instance);
  const { documentViewer } = instance.Core;

  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);
  };

  documentViewer.addEventListener('documentLoaded', () => {
    instance.UI.setToolbarGroup('toolbarGroup-Redact');
    instance.UI.setToolMode('AnnotationCreateRedaction');

    document.getElementById('apply-redactions').onclick = () => {
      instance.UI.showWarningMessage({
        title: 'Apply redaction?',
        message: 'This action will permanently remove all items selected for ' + 'redaction. It cannot be undone.',
        onConfirm: () => {
          documentViewer.getAnnotationManager().applyRedactions();
          return Promise.resolve();
        },
      });
    };
  });
});
```

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


---

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