Another freebie for now, the instant classic #afraidtotagdoglovers also with @angiewa.com
si-p.jayenh.com/AngieAfraidt...
That exchange was years ago but the idea got stuck in my head.
In her case the images she sent out by email could be watermarked (invisibly), *PER* user.
But more broadly I thought, what I'd like is a viewer where what you see and screenshot can be traced back to that viewer at that time.
vibe coded a little tool this morning to make social preview cards (not finished but MVP working just fine)