A QR code for the page: a card, a frame, a plaque
Under the page's ⋯ menu, QR code for the page draws a code that opens the page for anyone who scans it — read, not add. It carries no name and no address, works only while Anyone with the link can read it is on, and a manager can stop it at any time.
Some places aren't a group chat: a memorial card, a photo in a frame, a small plaque on a bench, a headstone. For those there is a code to scan. Open the page, tap ⋯ beside the action row, and choose QR code for the page.
What a scan opens
Anyone who scans the code opens the page exactly as the link does — they can look, not add. Adding to the page still takes an invitation. The page's privacy decides whether the code opens anything at all:
| What a scan does | |
|---|---|
| People I invite, with Anyone with the link can read it on | Opens the page for anyone. |
| People I invite, switch off | Someone on the page signs in and it opens; anyone else reads only that the page is kept among its people. No name is shown. |
| Just me | No code is offered. |
Switch Anyone with the link can read it off and every printed code goes quiet; switch it back on and they work again, without reprinting.
What the code holds
Only a web address ending in a long random key. It carries no name, no address and nothing about the page — nothing to decode. The key can't be guessed, and the page it opens is never listed or indexed by search engines. The code is the page's, not the person's who made it: if that account is later deleted, the code keeps working.
One code per page
Every card, frame and plaque made for a page carries the same code. A manager makes it (it is made the first time a manager opens the dialog); everyone on the page can see and save it, so a cousin can print the cards.
Save as PNG is for a printer or a photo book. Save as SVG is for an engraver or a sign maker — it scales to any size without blurring. The code is drawn with the highest error correction, so a weathered or slightly damaged print still scans.
Before it goes on anything permanent: print it at least 2 cm across, dark on light, and scan it with a phone.
Stopping a code
A manager can Stop this code. Every card or plaque printed with it stops opening the page at once. A new code can be made at any time — it will be a different one, so what was printed before stays quiet. Nobody is told when a code is scanned, and nothing is counted.