The photos you take with Photo Booth are saved in your Camera Roll album in the Photos app on iPad.
Delete a photo. Select a thumbnail, then tap
.
Share or copy a photo. Tap a thumbnail, tap
, then tap a share
option (Message, Mail, iCloud, Twitter, Facetime) or
Copy.
View photos in your Camera Roll album. In Photos, tap an album, then tap a thumbnail. To see the next or previous photo, swipe left or right. See the Photos section -> View photos and videos.
Upload photos to your computer. Connect iPad to your computer using the Lightning to USB cable.
If you delete the photos from iPad when you upload them to your computer, they're removed from your Camera Roll album. You can use the Photos settings pane in iTunes to sync photos to the Photos app on iPad.