In supported apps, such as Notes and Photos, you can use the Markup tools to add text, shapes, stickers, and image descriptions to your images and documents.
When you’re done, tap outside the text box.
To close the Markup toolbar, tap next to the shape, then tap an option.
When you’re done adjusting the shape, tap the screen.
To close the Markup toolbar, tap or Markup.
In the Markup toolbar, tap , then tap Description.
Enter your description, then tap Done.