Display the handout master.
Change to handout master view to change the properties of the default font or add a logo image that repeats in every slide The content that is assigned to the master is printed repeatedly on each handout when printed so that users do not have to do the same work which can improve the efficiency.
A master is used to organize the basic elements (i.g. placeholder, header and footer, slide number, etc.) of a slide to make these elements common across all slides. Therefore, the contents of the slide such as text and objects that you enter randomly are not displayed in master view.
To check the contents of the slides and the layout when printing, click File > Preview and then select an item you want under Print Target on the toolbox.