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Redact PDF

Security

Permanently cover confidential information with solid black boxes before sharing your PDF. All redaction happens locally in your browser.

📄

Drop a PDF to redact

🔒 100% Private

Files never leave your browser. No upload to any server.

⚡ Instant

Processing runs locally on your device. No queues, no waiting.

🆓 Free & Open Source

No signup, no watermarks, no limits. MIT-licensed code.

Frequently asked questions

Is the redaction permanent?

The redaction draws an opaque black rectangle over the area. For maximum security on highly sensitive documents, run the redacted PDF through the Compress PDF tool to flatten the page into an image.

Can I redact in multiple places?

Yes — drag as many redaction boxes as you need on each page.