When you delete an iPad app, it deletes all the folders the app created on installation. You can use the Files app or something like Documents by Readdle, to create a different Designer folder on the iPad. You save to that folder and if you delete Designer app, it deletes its own Designer folder, but will not delete the Designer folder that you created with Files or Documents. It’s the way iOS works and we all have to accept it as part of the security of iOS. Remember though, in the example I have provided, deleting Files or Documents would delete your new Designer folder and it’s contents.
