Redact a PDF or image, for real
Black rectangles drawn in a PDF editor hide nothing — the text is still in the file, one Select-All away. This removes the data, and accepts the cost of doing so.
- Runs entirely in your browser
- Works offline
- No upload
- No sign-up
- No watermark
Loading the tool…
How it works
- Drop the PDF or image and drag boxes over what must disappear — black, white or pixelated.
- Work through the pages; each keeps its own boxes.
- Redact: every page is rasterised, the boxes burned in, and the rebuilt file downloaded.
Why nothing is uploaded
Every operation on this page is done by code running inside your browser tab, using the same engine that renders web pages. The file is read from disk into your tab’s memory, transformed there, and written back out as a download. It is never sent anywhere — not to us, not to a third party.
Verify it yourself
- Open your browser’s developer tools (F12) and select the Network tab.
- Load your file and run the tool.
- The only requests you will see fetch the tool’s own code — and, for a few heavy tools, their open-source engine from a public CDN — plus one small page-view ping to loreatec.jp (page address and title, nothing more). None of them carry your file.
Frequently asked questions
Why do the covered areas actually stay hidden here?
Because after redaction there is nothing to reveal: each page becomes a flat picture and the text objects are simply not carried over. The classic failure — copying the “blacked-out” text into a text editor — has nothing to grab.
What does it cost?
The output has no text layer anywhere, so it cannot be searched or have text copied from it, and the file is typically larger. That trade is what makes the redaction real; the tools that keep the text searchable are the ones that leak. Run OCR on the result if you need the visible parts searchable again.
Should I use black boxes or pixelation?
Boxes. Pixelation is offered because people expect it, but heavily pixelated text has occasionally been reconstructed. For anything that matters, an opaque box destroys more information — which is the point.
Does the original leave my machine?
No. The whole point of redacting is that the document is sensitive — rendering, box-burning and rebuilding all happen inside this tab.