Redact PDF Online Free

Redact PDF Online Free

Redact PDF is a free online tool that lets you permanently remove sensitive information from PDF documents by drawing black redaction boxes over confidential text, personal data, or proprietary content. The redacted areas are replaced with solid black rectangles, making the underlying information completely unreadable. All processing runs locally in your browser — your document never leaves your device.

Why PDF Redaction Matters

Redaction is a critical step whenever sharing documents that contain sensitive, confidential, or private information. Simply covering text with a black box in a word processor is not true redaction — the original text may still be accessible in the underlying document. True PDF redaction permanently removes the content from the document so it cannot be recovered by selecting text, using Find, or inspecting the file structure.

Common redaction use cases include removing personal identification information (PII) from shared documents, blacking out confidential financial figures in reports shared externally, removing witness names or sensitive details from legal documents for public disclosure, protecting patient information in medical records before sharing, and removing proprietary business information before submitting documents to regulatory agencies.

How to Redact a PDF

Upload your PDF, navigate to the page containing sensitive content, and use the redaction drawing tool to draw rectangles over the areas you want to permanently remove. You can redact content on multiple pages before clicking Process. Once processed, the redacted areas are replaced with solid black in the output PDF.

Frequently Asked Questions

Is the redaction permanent?
Yes. The tool applies solid black overlays to the selected areas in the final PDF. Verify your redactions by reviewing the output PDF thoroughly before sharing.

Can redacted content be recovered?
With this browser-based tool, recovery of redacted content is extremely difficult. For the highest-security redaction requirements, verify the output with a professional PDF tool.