Send Full Resolution Photo From IPad
If you notice that the images you send from your iPad are not being received with the same resolution as the original file, you can actually change this option when are composing your email.
When you got to send the file in an email, you will the size of the file you are trying to send out to the right of the Cc/Bcc fields. The option will probably be grayed out, but go ahead and tap it anyway. A new window will appear that will allow you to select the resolution of your choice.