Previewing a design is easy! When you’re in the design center with any design, down in the bottom right hand corner, there’s a little switch that turns on and off the preview. The preview isn’t too much different from what you would otherwise see, but it does remove the bleeds, which is good for showing you how far something is away from the edge of the card. This preview is fairly accurate, but it’s not a direct representation of what’s going to print. A designer review can provide an official proof of the card/planner/design.

This is where the preview button is
This is what you’d see, at least for this design. You’ll see the red and blue ‘cut’ lines are gone, and the card is a little smaller because we remove the bleed edge.