In iOS 14 and later, Apple's stock Photos app allows you to add captions to the pictures in your photo library so you can add more context to ...

Photo Captions and Filtering The ‌Photos‌ app in iOS 14 supports captions so you can add additional context to your photos with the information you add synced across iOS and Mac.

Srinivasan Kasturi followed my instructions in How to add permanent captions to your photos, and was disappointed that his captions didn't appear on the pictures themselves.

Care to import, caption, and print your pictures with those same captions? iPhoto provides a way to do just that.

This article explains how to put a caption on a picture. Image captions are important because they add extra information to your visual web page elements.