BrainCoder
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Redact PDF

Black out sensitive information

Free forever — no sign-up, nothing uploaded. Files never leave your device.

braincoder.app/use/pdf-redact

Redact PDF

Black out sensitive information

Drop your file here

or browse from your device

Browse files

document.pdf

1.2 MB

report.pdf

860 KB

100% private

Nothing is uploaded — everything runs in your browser.

Free forever

No account or payment required.

No sign-up

Open the tool and start using it right away.

Local processing

Processing time depends on your input and device.

About this tool

Draw black redaction boxes over private content on any page, then export the redacted PDF — all locally.

PDF Redact is a security-focused tool that permanently removes sensitive content from PDF documents by blacking out selected areas. Unlike simply covering content with a black rectangle—which can often be removed to reveal the underlying text—true redaction permanently deletes the redacted content from the PDF file, making it unrecoverable. This is essential for compliance with privacy regulations like GDPR, HIPAA, and FOIA requirements.

Whether you need to hide personal information like names and Social Security numbers, obscure financial figures, remove confidential business data, or censor portions of documents before public release, PDF Redact provides precise control over what gets permanently removed. Draw redaction boxes over any content, preview the result, and download a clean PDF where the redacted information is completely and irreversibly eliminated from the file structure.

Key features

Everything you get with Redact PDF — no premium upsell.

Permanently remove sensitive content from PDFs

Draw redaction areas over text, images, and any content

True redaction that removes underlying data (not just overlays)

Black out or white out redaction styles

Preview redacted document before finalizing

100% client-side redaction with no data uploads

How to use Redact PDF

Follow the steps below to use the tool.

  1. 1

    Upload PDF

    Drag and drop the PDF containing sensitive information you need to redact.

  2. 2

    Mark Redaction Areas

    Draw boxes over the content you want to permanently remove—text, images, or specific regions.

  3. 3

    Preview Result

    Review the redacted document to ensure all sensitive content is properly covered.

  4. 4

    Download Redacted PDF

    Apply the redactions permanently and download the cleaned PDF file.

Still free, still private — your files never leave your device.

Launch Redact PDF

Frequently asked questions

Quick answers before you launch the tool.