@mwichary Main problem is that social media platforms convert images into their own preset formats for storage, losing metadata in the process. Could be done with the MakerNote field in EXIF, but some manufacturers use that for other things. Alternatively, you can zip the alt text and cat it onto the end of the image. Image will work as normal, but change the file extension to .zip and you can recover the alt. Can trigger security issues though, as the filesize won't match image size.