Once you have created and exported the slideshow video, you may want to delete those albums imported to make slideshows because you they will no longer being used and you want to free up some space on your iOS device.
To delete a slideshow project, please run Photo Slideshow Director HD Pro on your iPad, tap on the “Delete” button at the bottom of the screen. Then follow the instructions to delete the project.
If you have saved multiple slideshow projects, you need to browse through the projects and make the one you like to delete as the current project. When the target project is selected as current, tap on the “Delete” button to remove it from the slideshow maker on your iPad.