From Web via Dropbox
Download files from the web just using your iPad and Dropbox.
Open Safari on your iPad and visit http://www.mr-clipart.com.
Tap on 'Download' (1) and search for your desired template.
Tap on 'iPad' (2) (you might be asked to login at this step)
Tap 'Open in Dropbox' (1)
Select a folder in your 'Dropbox' to save the template in. (1)
Tap on 'Upload' (2)