Is Redact PDF free to use?

Yes, completely free. No signup, no watermark, no file limit. Redact as many PDFs as you need.

Is Redact PDF safe? Do my files get uploaded?

No upload required. All redaction happens in your browser using pdf-lib. Your sensitive PDF never leaves your device, which is critical when handling confidential information.

Does Redact PDF work on mobile, iPhone, and Android?

Yes. It works in any modern browser including Safari on iPhone and Chrome on Android.

Is the redaction truly permanent and unrecoverable?

Yes. The tool draws solid filled rectangles directly onto the page graphics, so the underlying text is hidden behind opaque shapes in the new PDF. The original text cannot be revealed by selecting, copying, or using PDF tools on the output file.

What's the difference between Redact PDF and Highlight PDF?

Highlights are semi-transparent so the text underneath stays readable. Redactions are solid and opaque, completely hiding the content beneath. Use redact when you need to permanently obscure sensitive information.

Redact PDF Online Free

Permanently black out sensitive information in your PDF documents. Draw rectangles to cover confidential content.

Important: Redaction is Permanent

Once you download the redacted PDF, the covered content cannot be recovered. The original text or images under the redaction boxes will be permanently hidden.

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Upload a PDF to redact sensitive content

Max 100 MB per file

Last updated May 2026

Security Note

This tool draws opaque rectangles over content. While this visually hides the information, for maximum security with highly sensitive documents, consider using professional redaction software that removes the underlying text data.