can I make it so my website won't allow someone to download images from a gallery???

You can google putting code in that disables Right-click, but to be honest, since anyone can screenshot any image, they can be stolen.
You can use copyright text over the images but it ruins them.

got it thank you...

Hi,

Thanks for contacting us

The following script removing the option of right-click button, to prevent your visitors from saving the images, go to Site Settings >> HTML >> Additional Head HTML
and paste the following code.

<script> document.oncontextmenu = cmenu; function cmenu() { return false; } </script>

...................................................
Sincerely,
Ahmad.
Nicepage Support Team

Please subscribe to our YouTube channel: http://youtube.com/nicepage?sub_confirmation=1
Follow us on Facebook: http://facebook.com/nicepageapp