Redact PDF Online — Permanently Remove Text, No Upload | MultiTools

What Is PDF Redaction?

Redaction is the process of permanently removing sensitive information from a document before you share it — names, account numbers, addresses, signatures, or whole paragraphs. True redaction does not just hide the text behind a black bar; it deletes the underlying content so it can never be recovered. This tool redacts PDFs directly in your browser: you draw black boxes over anything that should be removed, and it rebuilds the document so the content under those boxes is genuinely gone.

This distinction is the difference between safe and dangerous. A surprising number of leaks happen because someone covered text with a black rectangle in a PDF editor or word processor, not realising the original text was still in the file. Anyone could select it, copy it, or pull it out with a script. There are well-known cases of redacted court filings and reports being un-redacted in seconds this way. By flattening each page into an image with the redactions burned in, this tool makes that mistake impossible.

Why Use This PDF Redactor?

• The content is actually removed. Pages are rebuilt as images with the black boxes part of the picture, so there is no hidden text layer left to recover.
• Nothing is uploaded. The whole process runs on your device, which is exactly what you need for contracts, filings, and records you cannot send to a third party.
• Simple and visual. Drag a box over anything you want gone, on any page, and see exactly what will be hidden.
• No account, no watermark, no cost.
• It cleans metadata too. The rebuilt file does not carry the original document's hidden metadata.

Common Use Cases

• Legal documents — remove client names, case details, or personal data from filings and disclosures before sharing.
• HR and recruitment — black out salaries, addresses, and ID numbers on documents passed between teams.
• Medical and financial records — redact patient or account details before sending a document for review.
• Journalism and research — protect a source by removing identifying details from a leaked or shared document.
• Everyday privacy — hide your address, signature, or account number before posting or forwarding a PDF.

How to Use This Tool

1. Open your PDF — drag and drop the file or click to browse. It is loaded locally and never uploaded.
2. Draw over what to remove — click and drag to place a black box over any text or area you want redacted.
3. Move through the pages — use the page controls to redact every page that needs it; undo or clear boxes as you go.
4. Apply the redactions — click the button to rebuild the document with the content under each box permanently removed.
5. Download and verify — save the redacted PDF and open it to confirm the hidden content cannot be selected or recovered.

Frequently Asked Questions

Is the redacted text really gone, or just covered?

It is really gone. Each page is converted to an image with the black boxes painted into the pixels, and the PDF is rebuilt from those images. There is no text layer underneath, so nothing can be selected, copied, or recovered from under a box.

Is my PDF uploaded to a server?

No. The entire process runs in your browser, so the file never leaves your device. That makes it safe for confidential legal, medical, and financial documents.

Will I still be able to select text in the redacted file?

No. Because the output is image-based, the text is no longer selectable or searchable anywhere in the document. This is the trade-off that guarantees the redacted content cannot be recovered.

Why is the redacted file sometimes larger than the original?

The redacted PDF stores each page as an image rather than as text, which can increase the file size. The benefit is that the removed content is truly gone.

Can I undo a box if I make a mistake?

Yes. You can remove an individual box, undo the last one on a page, or clear a whole page before you apply the redactions. Always review the downloaded file before sharing it.