<img src="https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_57B3F50E-27D2-4D2F-92D1-796D006398C0/public" style="background-color:#D1D1D1;max-width:min(100%,1280px);max-height:min(720px);;background-image:url(https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_57B3F50E-27D2-4D2F-92D1-796D006398C0/public);height:auto;width:100%;object-fit:cover;background-size:cover;display:block;" width="1280" height="720"> To change the slide size, go to the <b><span style="font-family: 'Avenir-Heavy'">View</span></b> tab, click <b><span style="font-family: 'Avenir-Heavy'">Slide Master,</span></b> then click <b><span style="font-family: 'Avenir-Heavy'">Slide Size</span></b> and choose <b><span style="font-family: 'Avenir-Heavy'">Custom Slide Size…</span></b> ～ <a class='tag' href="/tags/powerpoint">#powerpoint</a> <a class='tag' href="/tags/howto">#howto</a> <a class='tag' href="/tags/2k20">#2k20</a>