Make a poster

1. Select the Design tab, then select Slide Size > Custom Slide Size.

2. Open the list of options under Slides sized for, then select the page size you want.

3. Under Orientation > Slides, select whether you want Portrait or Landscape orientation.

4. Select OK.

With the poster canvas sized and oriented the way you want, you're ready to begin adding content to it. Use options on the Home and Insert tabs of the ribbon to start adding content. 

1. Select the Design tab, then select Slide Size > Page Setup.

2. Select Slides sized for, then select the page size you want.

3. Under Orientation, for Slides, select whether you want portrait or landscape orientation.

4. Select OK.

With the poster canvas sized and oriented the way you want, you're ready to begin adding content to it. Use options on the Home and Insert tabs of the ribbon to start adding content. 

1. Select the Design tab, then select Slide Size > Custom Slide Size.

2. Open the list under Slide sized for, then select one of the page-size options under Print.

3. Under Slide orientation, select either Landscape or Portrait.

4. Select OK.

With the poster canvas sized and oriented the way you want, you're ready to begin adding content to it. Use options on the Home and Insert tabs of the ribbon to start adding content.