Catering companies can use Mark watermark cameras to record dishes and food. Chefs or waiters can take photos of dishes and add time and location watermarks to the photos to record the preparation process and presentation of the dishes. This can help catering companies promote their dishes and attract customers' attention, and can also serve as a record of dish quality, hygiene and safety. These photos can be used on menus, promotional materials or social media to enhance the restaurant’s brand image and customer experience.