InDesign gradient red to transparent

Quick answer：

InDesign is a desktop publishing software developed by Adobe Inc. A gradient from red to transparent in InDesign can be created by using the Gradient tool in the toolbar, selecting the red to transparent gradient from the gradient picker, and then dragging the gradient across the object you want to apply it to. This creates a smooth transition from red to complete transparency. Gradients are useful for adding depth and visual interest to design elements.