No app install.
The phone opens a browser scanner from the short-lived QR route. Gallery fallback remains available when camera permission is blocked.
SIGNATURE / PHONE BRIDGE / SCAN V1.0Your phone is
Your phone is
already the scanner.
Show one QR on this computer. Your phone becomes a multi-page document scanner — four-corner flattening, document enhancement and PDF assembly happen locally, then the finished result comes straight back over verified WebRTC.
Show phone QR →COMPUTERQR→PHONECAMERA→LOCALCLEAN→COMPUTERPDF
SCAN / PHONE BRIDGE / WEBRTC
CHECKING SIGNALINGDIRECT MODE
01 / PHONE BRIDGE
Point your phone at the QR.
The phone becomes the scanner. Capture and clean pages there; the finished scan returns to this browser over the same verified BEAM channel.
NO APPNO CLOUD FILE30 MIN ROUTE
FILE PAYLOAD NEVER ENTERS SIGNALING STORAGE / QR ONLY CARRIES A TEMPORARY ROUTE
SESSION / IDLEChoose a direction to begin.
For nearby transfer, show a receiver QR here. Or join a sender by code.
Connection metadata expires automatically. File bytes travel over the encrypted WebRTC channel.
TRANSPORT WEBRTC DATACHANNEL / DTLSCHUNKS 64 KIB / BACKPRESSUREINTEGRITY SHA-256SESSION 30 MIN / ONE USE
Four corners, not blind crop.
Automatic document bounds are only the starting point. Every corner remains visible and finger-adjustable before the page is flattened.
Document modes.
Color preserves the original, Document stretches useful contrast, and B&W uses a local image threshold for high-contrast paperwork.
Multi-page output.
Capture, review, reorder and remove pages on the phone, then send one PDF or a clean JPEG ZIP to the waiting computer.
No scan archive.
Images remain in the phone browser. Signaling sees only temporary connection metadata; the final file moves through BEAM's encrypted DataChannel.
Verified arrival.
The computer independently verifies the final SHA-256 before offering the received scan for download.