Add an image gallery in Numbers on iPhone
With an image gallery, you can view a collection of photos and SVG images in one place on a sheet, so only one shows at a time. You can then tap through the images as you would through a slideshow.
Note: SVG images displayed in image galleries cannot be combined or broken apart.
Tap
in the toolbar, tap 
, then tap Image Gallery.Drag the image gallery to reposition it in the spreadsheet and 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 customise 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 in the spreadsheet, 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 spreadsheet.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 Numbers 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.