Add an image gallery in Pages on iPhone
With an image gallery, you can view a collection of photos and SVG images in one place on a page, so only one shows at a time. You might want to do this, for example, if you plan to export your document in EPUB format and publish it to Apple Books, so readers can tap or click through the images as they would through a slideshow.
Tap
in the toolbar, tap 
, then tap Image Gallery.Drag the image gallery to reposition it on the page, then drag any blue dot to resize it.
Tap
in the bottom-right corner of the image gallery, tap to select multiple images, then tap Add.To customize the image gallery, make sure it’s still selected, then do any of the following:
Adjust the position or zoom level of an image: Double-tap the image on the page, then drag it to move it in the frame. Drag the slider to zoom.
Reorder images: Tap
, tap Gallery, tap Manage Image, then tap Edit. Touch and hold 
, then drag to reorder images.Add an image description that can be used by assistive technology (for example, VoiceOver): Tap
, tap Gallery, then tap Description. Enter your text in the text box. The image description isn’t visible anywhere in your document.To add descriptions to other images in the gallery, tap the left or right arrow below the text box.
You can also add a title to an image gallery, as well as add captions to individual images or all images. See Add a caption or title to objects in Pages on iPhone.
To view the image gallery, tap
or 
.
To add more images, tap the image gallery, tap 
, then tap Add Images.
To remove an image, tap , tap Gallery, tap Manage Image, then tap 
next to the image you want to remove.