How To Set Poster Size In PowerPoint

Quick summary

Setting the correct poster size in PowerPoint requires using the Custom Slide Size dialog before you start designing. Configuring width and height upfront — using standard formats like A3 or A4, or fully custom dimensions — prevents layout issues when printing or presenting.

Steps

1. Go to the Design tab in PowerPoint.
2. Click Slide Size on the right side of the ribbon.
3. Select Custom Slide Size from the dropdown menu.
4. In the dialog box, set your desired width and height for the poster (e.g., A3, A4, or custom dimensions).
5. Click OK to confirm your poster dimensions.
6. Choose Ensure Fit or Maximize when prompted to handle existing content scaling.
7. Always set your poster size first before designing to avoid layout issues later.