Redact · In your browser
The server has no eraser.
Falcon Redact is a PDF redaction tool that runs entirely on your computer. The black boxes are applied in this browser tab; the unredacted file never leaves it. Each rectangle removes the bytes beneath it from the saved output — not painted over, removed — with source metadata stripped on save.
A redaction made here is final, because it never traveled. By design.
Browser-only · no upload · Updated 2026-05-28
Why this tool exists
Most redaction is undone before it begins. A redact tool that runs on someone else’s machine sees the file before the black boxes go on. The original — unredacted — passes through the pipeline, sits in the logs, and remains in whatever cache has not yet been cleared. The output you download is clean. The input you uploaded was not. You handed over the secret and asked the server to hide it from itself.
A redaction made on your computer skips that step. The unredacted file never leaves this tab. The black bars are applied where the file was opened, before anything is saved or sent. When you close the tab, the original goes with you — by your hand, on your timeline.
Drop a PDF here
or
Your PDF is opened and rewritten in this tab. Nothing about its contents is sent to a Falcon server.
Step-by-step
How to use Falcon Redact
Falcon Redact is a PDF redaction tool that runs entirely on your computer. The black boxes are applied in this browser tab; the unredacted file never leaves it. Each rectangle removes the bytes beneath it from the saved output — not painted over, removed — with source metadata stripped on save.
- 01
Open the PDF you want to redact.
- 02
Drag rectangles over the regions you want gone.
- 03
Save — the file is rewritten with the bytes under each rectangle removed and metadata stripped.
- 04
Download the redacted PDF.
Updated 2026-05-28
FAQ
Common questions
When I redact something, is the hidden text actually removed?
Yes. The content under a redaction is stripped out of the document, not just covered with a black rectangle. This matters: many tools only draw a box over the words, leaving the text underneath to be copied or recovered. Here the words are gone from the file you download.
Does my document leave my device to be redacted?
No. The file opens in this browser tab and the redactions are burned in on your computer. For a document sensitive enough to need redacting, that is the whole point — it is never uploaded, so it cannot be retained anywhere else.
Can someone recover what I redacted from the finished file?
No. Because the underlying content is removed rather than masked, there is nothing left beneath the marks to select, search, or extract. The redacted file carries only what you chose to keep.
Can I redact across several pages in one pass?
Yes. Mark every area you want gone across the document, then apply them together; each marked region is removed from its page when you export. The work is done in your browser, page by page, before the new file is written.
What do I get back after redacting?
A new PDF with the redactions permanently applied — the marked content excised and the rest of the document intact. The original on your computer is untouched; you keep both unless you choose to delete the source.
How your file stays private
No upload
Opens, parses, rewrites on your device. Nothing about the contents transits a Falcon server.
Zero logs
No filenames, sizes, contents, or per-file telemetry. Operation counts only.
No trackers
Open the Network tab during use. Only first-party JS appears in the request log.
Metadata stripped
Authors, edit history, EXIF, and embedded thumbnails are removed alongside the visible content.
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