You can manually select portrait or landscape by inputting the dimensions for your poster, or let PowerPoint orient your slide for you by inputting your dimensions and then selecting either portrait ...
Photoshop CC 2014 tutorial showing how to create and design a classic, vintage, 1930s - 1940’s-style, tourism poster. Photo: ...
Photoshop CC tutorial showing how to design and create a dynamic, retro, constructivist-style, custom text poster of your ...
Do NOT just select "Standard" or "Widescreen" setting in PowerPoint, the dimensions may not be appropriate for your specific poster size. To change the size of your slide: Open PowerPoint and click on ...