SmallPDF.us
100% Free PDF Redaction

Redact PDF

Permanently black out sensitive text and images in your PDF. The hidden content is truly removed — not just covered. Free, secure, no signup.

Drop your PDF here

or click to browse — up to 100 MB

Secure Instant Auto-deleted

Real redaction, not fake black boxes

Most tools just draw a rectangle on top of your text — the words are still there underneath. Ours removes them for good.

True redaction

The area you select is rasterized and the pixels are burned black, so the underlying text and images are permanently destroyed — impossible to copy or recover.

Private & secure

Files travel over an encrypted connection, are scanned for malware, and auto-delete from our servers within an hour.

Draw anywhere

Simply drag a box over any name, number, signature or image on any page. Add as many redaction areas as you need.

Nothing recoverable

Redacted content cannot be revealed with copy-paste, Ctrl+A, or a PDF editor — because it no longer exists in the file.

Fast & in-browser

Mark up your document right in the browser and get the redacted file in seconds. Nothing to install.

Always free

No watermark, no signup and no hidden limits. Redact as many PDFs as you like, completely free.

How to redact a PDF in 3 steps

Permanently remove confidential information in seconds.

1

Upload your PDF

Drag & drop or pick the PDF with the sensitive content.

2

Draw over the secrets

Drag a black box over every name, number or image you want gone.

3

Download

Click redact and download a PDF with the content permanently removed.

When you need to redact a PDF

Anywhere sensitive information must be shared safely — with the private parts truly gone.

At work

  • Hide client names and figures in contracts before sharing.
  • Remove salaries and personal data from HR documents.
  • Black out account numbers on invoices and statements.
  • Redact confidential clauses before sending to third parties.

Personal

  • Cover your address and ID number on scanned documents.
  • Remove card and bank details from receipts and statements.
  • Hide signatures before posting a document online.
  • Black out private info on forms before printing or emailing.

Frequently asked questions

Redact PDF online — permanently remove sensitive content

Our Redact PDF tool permanently removes confidential text and images from any PDF. Unlike tools that simply draw a black rectangle on top of the content, we rasterize each redacted area and burn the pixels black — so the original words and images are genuinely destroyed and cannot be recovered by copying the text, selecting all, or opening the file in a PDF editor.

Just upload your PDF, drag a box over every piece of sensitive information — names, account numbers, signatures, faces or entire paragraphs — and download the redacted file. You can add unlimited redaction areas across every page. Pages you don't touch stay perfectly intact and searchable.

Why 'true' redaction matters

Many free redaction tools only hide content visually. The black box sits on top of the text, but anyone can select, copy, or extract the hidden words underneath — a serious data-leak risk for contracts, medical records and IDs. Our tool eliminates that risk by removing the underlying content entirely. Files are transferred over a secure encrypted connection, scanned for malware, and automatically deleted from our servers within an hour. No watermark, no registration and no cost.

Ready to redact your PDF?

Upload your file, black out what's sensitive, and download a truly safe document — free and secure.