public String getId() {
        return this.id;
    }
<p>
A unique identifier for the settings for one watermark. The value of <code>Id</code> can be up to 40 characters
long.
</p>

@return A unique identifier for the settings for one watermark. The value of <code>Id</code> can be up to 40
        characters long.
aws-java-sdk-elastictranscoder/src/main/java/com/amazonaws/services/elastictranscoder/model/PresetWatermark.java