How Do I Do That In InDesign?

Apply a Gradient Across Multiple Objects?

First, ensure that a gradient has already been applied to all selected objects. Then go to the Toolbar and select the Fill or Stroke box (depending on whether you want to apply the gradient to the fill, the stroke, or even both). Select the Gradient Swatch Tool (G) and position it where you want to define the beginning point of the gradient. Now click-and-drag across the objects in the direction you want the gradient to be applied. You can press-and-hold the Shift key as you drag to constrain the gradient ...