You can rename an Asset at any time through your Asset Store:

1. Log in to PebblePad and go to your Asset Store.
2. Click the 'i' icon (information icon) to the right of your Asset:

3. A panel will appear to the right. In the section at the top named 'Title', click on 'Edit':

4. In the box that appears, type a new title for your Asset, then click 'Save'. You have now renamed your Asset.