Redact PDF Online — Permanently Blackout Sensitive Data Free

Fast, free, and 100% private online PDF tool

Drop PDF to sanitize & redact

Permanently blackout confidential text, numbers, and sensitive visual areas

Up to 150.00 MB per file • Single file

Processed 100% locally in your browser. Your files never leave your device.

Processed 100% locally in your browser

Your files never leave your device. Zero server uploads.

How It Works

Upload PDF Document

Drag and drop your PDF into the secure redaction studio.

Draw or Auto-Redact

Click and drag over sensitive text to blackout areas, or use the 1-click Auto-Redact button to automatically find emails and phone numbers.

Download Sanitized PDF

Click "Save & Download Redacted PDF" to export a permanently sanitized document.

Frequently Asked Questions

Quick answers about this tool

Is PDF redaction permanent?▼

Yes. AeroPDF draws permanent vector blocks directly into the PDF content stream, ensuring the underlying text cannot be selected, copied, or searched.

Are my confidential documents uploaded to a server?▼

No. The entire redaction process runs locally in your browser using WebAssembly and Canvas. Your confidential files never leave your device.

Can I auto-redact emails and phone numbers?▼

Yes! Use our 1-click Auto-Redact scanner to instantly find and blackout all email addresses, phone numbers, or custom keywords across all pages.

Is this tool free?▼

Yes, AeroPDF Redaction Studio is 100% free with no page limits or signups.

About This Tool

Permanently redact and sanitize confidential information from your PDF documents with our free online PDF redaction tool. Blackout Social Security numbers, credit cards, confidential client names, or financial figures directly in your browser. Unlike superficial highlight tools, AeroPDF burns opaque redaction blocks permanently into the PDF stream so sensitive text cannot be highlighted, searched, or extracted underneath. 100% private with zero cloud uploads.

Why Choose AeroPDF?

100% Private

Processed entirely in your browser with no cloud uploads.

Instant Speed

No waiting for slow server roundtrips or queues.

Any Device

Works smoothly on Windows, Mac, iOS, and Android.

Key Features

100% Client-side redaction — zero cloud uploads

Permanent vector & text layer sanitization

1-Click Auto-Redact for email addresses & phone numbers

Interactive drag-and-draw blackout selection box

Batch page navigation and instant download

Completely free with no file size limits or registration

Related PDF Tools