You can resize your design to different sizes in one go. Go to ‘resize’ in the PosterMyWall editor. Select the sizes you’d like to resize your design to. Click ‘copy & resize’.
Copies of your resized design will open in new tabs, which can be customized and saved to your My Stuff. You may have to adjust design elements after resizing a design. The original design will remain unchanged.
Want to watch a video tutorial instead? Here's a 20 second video to get your acquainted with copying and resizing.