Hey! At present, the WP Jquery Lighbox doesn’t support pinch to zoom. But the plugin has recently changed hands and we have a lot of new development and features planned in the coming months.
I’ll add this as a feature request. If we get any additional requests for it, I’ll bump the priority.
I will also add that we’ll will be adding some other Lightbox styles that I know WILL support this. We’ll just need to think if it is worth manually adding this to the existing jquery lightbox.
