By default, when you're setting up a Proofing Gallery for a client, your logo will be set to appear at the top of the cover page. The cover page is the page your client will see when they are entering their password to view their images. If you'd prefer for your logo not to show on this page, you can adjust this setting when setting up an individual proofing gallery.
First, you'll need to click on the Proofing icon at the top of your control panel. From here, click on the name of the event you'd like to manage. If you haven't yet created the event, create it first. When you first click on the event name, you'll be brought to the first gallery of the event.
Click on the cover page button on the left side of the screen.
Change the first option for Display Logo to No then click on save changes at the bottom of the page.