In Step with InDesign: Using Corner Effects
Written by Jamie Chambers
You can add a simple effect, maybe one that works with your theme, by changing the corners of objects. InDesign provides several options to easily make the change. You can select from Fancy, Bevel, Inset, Inverse Rounded and Rounded to get just the effect you want.
1. With the Rectangle tool, draw a square, or with the Selection tool, select an object in the document.
2. Go to Object > Corner Options. The Corner Options palette will appear. Make sure the Preview box is selected.
3. From the Effect drop-down list, select Fancy. Select a size for the corners. You should see the corners change on the selected object. Click OK.
4. To use this effect with an image, you can paste an image into the object.
5. To add a special effect to the object, go to Object > Effects and select Inner Shadow. In the Effects palette, adjust the Distance, Angle, Size and Choke to your preference.
You can always remove or change the corner effect by selecting the object, then go back to Object > Corner Options and change the Effect to None or another option. Any special effects you may have added automatically adjust to the new corner shape.