I’m curious: Did people/apps ever attempt to bundle alt text with the image as metadata? (Like EXIF?)

That feels like the right place to put it, so then it could be read by apps/browsers, and also travel with the image on save etc. Rather than specifying it as out-of-band text like we do today.

@mwichary The Caption/Abstract field in the IPTC-IIM EXIF-header is just what you are looking for. I don‘t think that the contextual argument holds. If anything you can still tailor the EXIF in the UI before sending.