Redact PDF
Overlay black bars to redact (visual only). 100% in your browser — your file never leaves your device.
We explain real redaction instead of faking it — your file is never uploaded.Files are processed on your device only. We never upload or store them. Some conversions (Office, OCR, encryption) are best-effort and may not preserve full layout.
About this tool
Redact PDF is about hiding sensitive information before you share a document — names, numbers, addresses. We are explicit about an important limitation: a true, permanent redaction removes the underlying text so it can never be recovered. A simple black bar drawn over words can sometimes be undone if the original text remains in the file. This in-browser tool applies a visual blackout, which is fine for casual sharing but is not a substitute for proper redaction software when the stakes are high. We would rather tell you that than let you believe a covered line is gone forever. The work runs locally, so your document never leaves your device. For serious confidentiality, use a reader that supports true redaction. No upload, no account — just an honest visual cover.
Redaction is one place where “good enough” can backfire, so honesty matters most. Someone wants to share a contract but cover a bank account number. A homeowner posts a permit but blacks out an address. A business redacts a client name from a case study. A patient hides an identifier on a form they must submit. In each case the instinct is to draw a black bar and move on — but if the original text lingers underneath, a careful recipient can recover it. We will not pretend our tool makes text unrecoverable; instead we tell you to use real redaction software for anything that counts. That candor keeps you safe, and because we never ask you to upload the file, the sensitive content stays on your device regardless. Privacy is served by telling the truth about limits.
How it works & privacy
This page does not upload your file. Because a genuinely permanent redaction must remove the underlying text — not just paint over it — we explain the honest approach rather than ship a black bar that someone could undo. For real confidentiality, open the PDF in a reader that supports true redaction and apply it there. Your document stays on your device the whole time.
FAQ
Is the redaction permanent and unrecoverable?
This tool explains the limit rather than fake it: a simple in-browser black bar can be undone if the original text remains. For truly permanent redaction, use dedicated redaction software.
Is my file uploaded?
No. We do not ask for uploads; the page only explains options, keeping your document on your device.
When do I actually need redaction software?
For legal or high-risk confidentiality where covered text must be unrecoverable. For casual sharing, a reader’s built-in redaction is enough.