The pressure-sensitive pen replaces the mouse, but realizes the function of the software. You need related software. Wacom official website currently only supports the ink annotation function in office. At present, there is no pen annotation software in PDF reading software.

Wacom was founded in 1983, and its vision is to bring people closer to technology through natural and intuitive user interface technology. This vision makes Wacom a leading global manufacturer of tablet systems, pen-sensitive digital screen systems and digital interface solutions. Wacom intuitive input devices have advanced technology and have been widely used to create the most exciting digital arts, movies, stunts, fashions and designs all over the world, so that business and home users can express themselves in a natural and rich way. Today, millions of users are using Wacom's wireless, passive and pressure-sensitive pen input technology to express their creativity freely, efficiently and perfectly. Wacom also provides efficient, convenient and environmentally friendly electronic signature and data interaction solutions for financial, hotel, communication, retail, medical and other service industries, as well as enterprises and governments, helping them realize paperless office and reduce costs.