Adding a watermark to Instagram photos can help protect your images from being copied and used without your permission. You can do this by going to the Instagram app and clicking on the three lines in the top left corner of the screen. This will open a menu with several options, including “Add Watermark.” Once you have chosen this option, you will need to provide some information about what you want to add a watermark to. For example, you may want to name your company or organization, or choose a specific image that you would like to protect. Once you have provided all of this information, it will be added to your photos automatically.