Digital ink refers to technology that allows users to create handwritten notes or drawings on digital devices, such as tablets and smartphones. It mimics the experience of writing with a pen on paper, using styluses or touch screens. This technology often includes features like pressure sensitivity, which enables variations in line thickness, and palm rejection, allowing users to rest their hands on the screen while writing. Digital ink is commonly used in applications like note-taking apps, graphic design software, and educational tools. It enhances productivity and creativity by providing a seamless way to capture ideas and information digitally, making it easier to organize and share content.