Redact a PDF
Permanently black out sensitive content in a PDF — privately, in your browser.
Drag & drop your file here
or click to choose — your file is processed locally and never uploaded
How to redact a PDF
- 1
Open your PDF
Drop in the file. Its pages are rendered locally and never uploaded.
- 2
Mark what to hide
Drag boxes over any text or images you want to redact, on any page.
- 3
Apply & download
The marked areas are burned in and the underlying content is permanently removed.
Redaction that actually removes the data
Many tools 'redact' by drawing a black rectangle on top of the text — but the text is still there underneath, and anyone can select or extract it. pdfnoupload uses true redaction (powered by MuPDF): the text and images inside the marked areas are permanently deleted from the document, while the rest of each page stays as crisp, selectable text and vectors. A black bar marks each redaction. And because it all happens in your browser, the sensitive document is never uploaded in the first place.
The flagship privacy tool
Redaction is where privacy matters most — you're sharing a document precisely because some of it must stay secret. Doing that on a server means trusting it with the unredacted original. pdfnoupload keeps the whole process local: mark, apply, download. There's no upload, no watermark, and it works offline after the first load. Always double-check the result before sharing.
Frequently asked questions
Is the redacted content really gone?+
Yes. The text and images inside the marked areas are permanently deleted from the PDF — not just hidden under a box — so they can't be selected, copied or recovered.
Is my document uploaded?+
No. Redaction happens entirely in your browser via MuPDF (WebAssembly). Verify zero uploads in DevTools → Network.
Does the rest of the document stay selectable?+
Yes. Only the marked areas are removed; everything else keeps its real, selectable text and sharp vectors — the page isn't flattened to an image.