100% client-side — nothing is uploaded to a server

Private PDF Redaction

Remove sensitive information before sharing documents.

Your files never leave your browser.

lockpdf.app/workspace

Sensitive information

Emails
3
Phone numbers
2
IBAN
1
National IDs
1

How it works

Four steps, zero uploads

Upload

Drag in a PDF, or click to browse. Files stay on your device.

01

Detect

Regex scans find emails, phone numbers, IBANs and national IDs automatically.

02

Choose

Toggle categories or manually highlight any text you want gone.

03

Download

Get a clean PDF with the sensitive text permanently removed.

04

Automatic detection

Finds what shouldn't be shared

Pattern-based detection for the MVP — reliable, transparent, and easy to extend.

Emails

john@gmail.com

Phone numbers

+421 900 123 456

IBAN

SK1234567890123456789012

National IDs

123456/7890

Privacy by design

Built so there's nothing to leak

There's no server component to this MVP at all. Document parsing, detection and redaction all run in JavaScript, in the tab you're looking at right now.

No uploads

Your PDF is read and rewritten entirely in your browser's memory.

No accounts

Nothing to sign up for. Open the app and start redacting.

Metadata stripped

Author, creator, producer and timestamps are removed on export.