Redact PDF

Redact PDF documents in your browser. Draw black boxes over any sensitive text or images on any page, and download a clean, redacted PDF.

Drag boxes over anything you want to black out. Click a box to remove it.

How to black out sensitive information in your PDF

  1. Step 1Upload your PDF — every page is rendered so you can mark what to hide.
  2. Step 2Drag boxes over the text or areas you want to black out. Add as many as you need across pages.
  3. Step 3Click Redact PDF and download the redacted document.

Frequently asked questions

Is the Redact PDF tool free to use?

Yes. You can black out sensitive information in your PDF right here online for free — no account, email, or credit card required. Sign up only if you want higher limits, larger files, or API access.

Are my files safe and private?

Yes. Uploads travel over an encrypted HTTPS connection, are processed on our servers, and are automatically deleted within a few hours. We never share or sell your documents.

Do I need to install any software?

No. PDF4 works entirely in your web browser, so there is nothing to download or install. It runs on Windows, macOS, Linux, Android, and iOS.

Is the redacted content really removed?

PDF4 draws an opaque black box over the selected area and flattens it into the page image, hiding the content visually. For the highest-assurance legal redaction of the underlying text layer, also run the result through Flatten PDF or convert to images.

Related PDF tools