How can I delete some photos from my iPad? Some will allow me to delete and others won’t? When I go to delete, the garbage can icon is not highlighted.
You can only delete pictures that were taken or imported on the iOS device.
If there is no garbage can icon it means that those pictures were synchronized via iTunes.
Connect your iPad to your computer, open up iTunes and look at the Photo synchronization setting. You have to either remove the pictures form the folder (or other source) which is synchronized or disable the photo synchronization all together to get rid of those pictures.