How To Add An Attachment To An Email In this video you will learn how to add an attachment to an email when using the Mail App on your iPad or iPhone. To add an attachment you must be using Apple's iCloud Drive or another cloud service like Dropbox, Google Drive or Microsoft's One Drive. This video shows you how to use iCloud Drive. If you are a Windows PC user and would like to copy and sync your documents to your iPad you will need to download iCloud for PC. To download iCloud for PC do a Goog