How to Add a Caption to a Facebook Picture Posting. One of Facebook's most powerful features as a social network is the ability for users to share photos with other users.

This guide shows you the steps to add captions to your images in Google Docs without installing an add-on, the easy way.

What to Know Place a figure tag around the image. Within that, add your caption in the figcaption tag. Optionally, add some CSS to spruce up the caption with its own background and colors.

To edit your Instagram post, tap the three-dot icon in its top right corner and select Edit. You can update the post's caption, tag people, add a location, and change its alt text when editing. Or ...

Tap "Photo" at the top of the page. Tap "Browse" and choose the picture you want to upload. Type a caption in the Photo caption text box. Tap the "Upload" button.