Redact a PDF — securely, with proof
Black boxes that actually delete the text underneath. Every pass re-scans the output to prove the content is gone and produces a verification report — all without the document leaving your device.
Redacted pages are rebuilt as 200 DPI images and lose selectable text. The report proves absence without quoting anything.
How it works
- 01
Drop your PDF
The file opens in your browser’s memory — it never travels over the network.
- 02
Draw boxes over anything sensitive
Drag with a mouse or finger, or place boxes with the keyboard and nudge them into position.
- 03
Apply, verify, download
Affected pages are rebuilt as images, the output is re-scanned to prove the text is gone, and you get the file plus a verification report.
Frequently asked questions
How is this different from drawing a black box in a PDF editor?
Most tools draw a rectangle over the text and leave the text underneath — select-all, copy, paste, and it’s back. This tool rebuilds every affected page as a picture with the region painted out before the picture is even encoded, so there is no text object left to recover. The verification report proves it by re-scanning the output.
What does the verification report contain?
Proof of absence, never content: it states that each redacted page yields zero extractable characters, names the metadata fields that were cleared (names only — never their values), notes removed attachments, states the rasterisation settings, and records a SHA-256 fingerprint of the output file. It quotes nothing from your document.
Does redaction change the rest of the document?
Pages without boxes are copied exactly as they are. Pages with boxes become 200 DPI images: everything unredacted on them stays legible, but text on those pages is no longer selectable or searchable. The tool and the report both say this plainly.
What about hidden data — metadata, attachments, form fields?
The output is a brand-new file: document metadata (author, title, edit history, XMP) and document-level attachments do not carry over, and annotations and form fields on redacted pages are gone with the page. The report lists what was cleared by field name.
How do I know my document isn’t uploaded?
Open your browser's developer tools (F12 → Network tab) before choosing a file — you'll see no upload requests during the whole pass. Once the page has loaded you can go offline and redaction still works.
Is it really free?
Yes — no task limits, no watermarks, no account. The site is paid for by the labelled display ads on the page.