You can define a watermark that contains text or images. For image watermarks, you can upload a PNG image or point to the URL for an image stored online. Once you define a watermark, you add it to a map or layer definition and adjust its position, rotation, and transparency. A map or layer definition can include multiple watermarks, so you can combine images and text. For more information, see Creating a Watermark Resource and Adding a Watermark Resource to a Layer or Map Definition.