In each gallery you will find a switch in the Gallery Settings to activate the Presentation Mode.
To activate Presentation Mode, activate the switch for Presentation Mode at the top by clicking on the title.
Your gallery will automatically start in Presentation Mode for all visitors of the link. You can see the Presentation Mode yourself by clicking on the button Preview in the upper left corner in your gallery. Or you can open the link to the gallery in a private browser window where you are not logged in to your picdrop account.
Please take a look at our tutorial about presentation mode for further input.