In order to crop an image in InDesign 2021, first select the image by click on it with the Selection tool. Once the image is selected, a bounding box will appear around it. To crop the image, click on the “Crop” icon in the Control panel. This will bring up the Crop Pages dialog box. In this dialog box, you can select the type of crop you would like to use, as well as the options for that particular crop. Once you have made your selections, click “OK” to crop the image.