We have 2 facilities especially for protecting your work.

1) Copyright Notice/ Watermarking
You can add a copyright notice and water mark to your images,
this is very effective at preventing people from using your images:

First Set the Copyright message and Watermark:
* Login
* Settings
* Under 'Advanced Settings'
* Preferences
* Input COPYRIGHT_MESSAGE as required
* Set/Tick COPYRIGHT_WATERMARK to yes if required.

Next Add the notice to your images:
* Login
* Pages
* Choose Gallery 'Edit Details'
* Choose Image 'Edit'
* For each image you wish to protect, check the copyright box
* Then click Update Image

2) Disable right click
In addition we have an option that disables users from using the
right click -> save image option in their web browser.
* Login
* Settings
* Under 'Advanced Settings' 
* Preferences
* set 'DISABLE RIGHT CLICK' to 'yes'
* Click 'Save Changes'