Once you’ve selected your poster and platform, click on “Resize options” at the bottom of the design preview. Select any option (eg. Fill or Blur) to automatically adjust your design to your platform’s dimensions.
Alternatively, while you’re editing your design, click on the ‘Resize’ button at the top of the poster maker, select the social media graphic that you want to create (e.g., Instagram Post), and then click on ‘Copy & resize’. Adjust the positioning and sizes of the elements and you’re done.
Clicking “Copy & resize” preserves your original design and creates a second version in your selected size.