Redact PDF
Cover sensitive areas with black boxes and flatten the page to an image so hidden text is removed — in your browser.
How to use the Redact PDF
-
Open the PDF and go to the page to redact.
-
Drag black boxes over every sensitive area.
-
Export, then open the result and verify before sharing.
How redaction actually removes text
Drawing a black rectangle on a PDF usually leaves the original text sitting underneath, recoverable by anyone. This tool prevents that: pages you mark are rendered to a canvas, the black boxes are burned into the pixels, and the page is re-embedded as a flattened image — the underlying text and objects are gone. Pages you don't touch are copied losslessly so they keep their quality and selectable text. It all happens in your browser.
Key features
- Drag rectangles over anything you want hidden
- Redacted pages are rasterized — underlying text is removed
- Untouched pages stay lossless and selectable
- Processed locally — your document is never uploaded
Frequently asked questions
Does the hidden text really get removed?
Yes, on redacted pages. Those pages are flattened to an image with the black boxes burned in, so the original text and objects no longer exist in the file. Always open the exported PDF and confirm nothing sensitive remains before you share it.
Why does the redacted page lose selectable text?
Removing the underlying data requires rasterizing the page to an image. That's the trade-off that makes the redaction real. Pages without redactions are left untouched and stay selectable.
Is anything uploaded?
No. Rendering, redaction and export all run in your browser — the PDF never leaves your device.