Redact sensitive data in PDFs using JavaScript

Overview

The Syncfusion JavaScript PDF Library provides an easy and effective way to permanently remove confidential or sensitive information from PDF documents using simple JavaScript APIs. This redaction feature helps developers securely remove text and images from PDFs while supporting compliance with privacy standards such as GDPR.

This feature works seamlessly across modern web development environments, including JavaScript, TypeScript, Angular, React, Vue, Node.js, and any other framework that integrates JavaScript. It is suitable for both client‑side and server‑side PDF processing, making it versatile for a wide range of web applications.

import { PdfDocument } from '@syncfusion/ej2-pdf';
import { PdfRedactor, PdfRedactionRegion } from '@syncfusion/ej2-pdf-data-extract';

// Load the document
let document: PdfDocument = new PdfDocument(data);
// Create a new text extractor
let redactor: PdfRedactor = new PdfRedactor(document);
// Add redactions to the collection
let redactions: PdfRedactionRegion[] = [];
redactions.push(new PdfRedactionRegion(0, {x: 10, y: 10, width: 100, height: 50}));
redactor.add(redactions);
// Apply redactions on the PDF document
redactor.redact();
// Save the document
document.save('output.pdf');
// Close the document instance
document.destroy();