Touch redaction without a store app
Same Instant engine as desktop. Not a camera-roll OCR product. You are boxing regions on an existing PDF. Keep the tab open until Files has the download. Huge productions still belong on a monitor.
Accuracy on a small screen
Zoom until the field fills the canvas. A sloppy box leaves digits in the margin. When in doubt, make the box larger.
Why local on cellular
You are not uploading a medical PDF over LTE to a stranger’s server.
Same URL on laptops
Windows and Mac browsers share the engine. Phone is the layout.