What is the safest way to hide info in a PDF?

Redaction — permanent removal of the content. Anything that merely covers (boxes, shapes, white-out) leaves the data in the file.

Can hidden PDF content really be recovered?

Covered content, trivially — select/copy or text extraction reads straight through visual covers. Removed content cannot be recovered from the file.

What about the file's metadata?

Clear it separately — author, title and creation details live in properties, not on pages. Remove PDF Metadata handles that.

Is AI detection available for finding all personal data?

Yes — the AI PII Redactor scans the whole document for personal data automatically (metered in AI Credit).

Hide Information in PDF

You want information gone before the file goes out. There is a safe way (redaction — the content is removed) and a trap (covering it — the content stays underneath). This page is the safe way, plus the honesty about the trap. Free with fair daily limits.

Free Encrypted Deleted in 1 hour

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Drag & drop your file here

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Accepted: PDF

256-bit SSL encrypted No sign-up to start Auto-deleted in 1 hour

Your files are processed temporarily and deleted automatically — there is no general cloud storage. File deletion.

How to redact pdf

Simple steps — no software to install.

1
Upload the PDF
The file with information to remove.
2
Redact the sensitive parts
Marked content is permanently removed.
3
Clear metadata and share
Properties cleaned; file safe to send.

Why use our Redact PDF

Secure & private

Files are encrypted in transit and deleted automatically after processing.

Fast results

Optimized processing returns your file in seconds.

Free to start

Core tools are free with daily limits — no install required.

Works anywhere

Runs in your browser on any device, anywhere in the world.

Hidden must mean removed

White boxes, black rectangles and cropped views all leave the underlying content in the file, recoverable by trivial means. Redaction removes the content itself — after it, there is nothing in the file to recover. If the information matters, removal is the only hiding that counts.

The three leak channels

Page content (redact it), metadata (clear it — author names and titles travel in file properties), and context (a document "anonymized" but obviously about one identifiable case). Cover all three before sensitive sharing. Files are processed temporarily and deleted automatically — there is no general cloud storage.

Permanent content removal
Metadata cleaning companion
Leak-channel awareness
Free with fair daily limits
Original never modified