You can create an Adobe Experience Manager (AEM) Logo component that displays your company's logo in an AEM web site. A logo component can also provide a link to the home page of your AEM web site. A logo component also contains a design-mode dialog so that property values are stored in the site design (/etc/designs/mywebsite):
The property values apply to all instances of the component that are added to pages that use the design.
The properties can be configured using any instance of the component that is on a page that uses the design.
Your design-mode dialog contains properties for setting the image and the link path. The logo component will be placed on the upper left side of all pages in the website.
A logo component lets an author select a logo during design time, as shown in the following illustration.