Draw a black box over sensitive parts of a PDF, entirely on this device -- nothing is uploaded. Drag directly on the page to mark an area, tap a box to remove it.
Yes, completely free with no sign-up, no watermark, and no limit on how often you use it.
No. Every conversion runs in your browser, on your own device. Your file is never sent to a server or stored anywhere but your device.
No -- this is a cosmetic redaction: a solid black box is drawn on top of the selected area in the exported file. The underlying text or image data in that area isn't stripped from the PDF's own content stream, so it's not the right tool for content that must be provably, permanently unrecoverable.
Yes -- tap any black box to remove it before exporting.
Yes -- it works in any modern browser on a phone, tablet, or desktop, with no app to install.