Section:

Redact Documents

Requirements
View Demo
Web SDK
Package: Redaction

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.

Implementation steps

To redact files with WebViewer:

Step 1: Follow get started in your preferred web stack for WebViewer
Step 2: Add the sample code provided in this guide

To use this feature in production, your license key will need the Redaction Package. Trial keys already include all packages.

Learn more about our Web SDK.

1// eslint-disable-next-line no-undef
2const WebViewerConstructor = isWebComponent() ? WebViewer.WebComponent : WebViewer;
3
4WebViewerConstructor(
5  {
6    path: '../../../lib',
7    initialDoc: 'https://s3.amazonaws.com/pdftron/downloads/pl/legal-contract.pdf',
8    fullAPI: true,
9    enableRedaction: true,
10  },
11  document.getElementById('viewer')
12).then(instance => {
13  samplesSetup(instance);
14  const { documentViewer } = instance.Core;
15
16  document.getElementById('select').onchange = e => {
17    instance.UI.loadDocument(e.target.value);
18  };
19
20  document.getElementById('file-picker').onchange = e => {
21    const file = e.target.files[0];
22    if (file) {
23      instance.UI.loadDocument(file);
24    }
25  };
26
27  document.getElementById('url-form').onsubmit = e => {
28    e.preventDefault();
29    instance.UI.loadDocument(document.getElementById('url').value);
30  };
31
32  documentViewer.addEventListener('documentLoaded', () => {
33    instance.UI.setToolbarGroup('toolbarGroup-Redact');
34    instance.UI.setToolMode('AnnotationCreateRedaction');
35
36    document.getElementById('apply-redactions').onclick = () => {
37      instance.UI.showWarningMessage({
38        title: 'Apply redaction?',
39        message: 'This action will permanently remove all items selected for ' + 'redaction. It cannot be undone.',
40        onConfirm: () => {
41          documentViewer.getAnnotationManager().applyRedactions();
42          return Promise.resolve();
43        },
44      });
45    };
46  });
47});

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