Adding text and captions to images is a fun way to alter them. Here’s how to add text to a photo on any device. If you're using Windows 10, right-click on the image > Edit with Paint 3D > Select ...

Hover over the image, then click the gear icon. 3. Add alt text by editing the image title in the "Content" tab. 4. Click "Save." How to add alt text to a gallery block image in Squarespace.