Who invented the fonts used today?

There is no fixed person

The text fonts used now are developed and improved by multiple designers and engineers. No one person or team can be called its inventor. Different text fonts have their own design concepts and styles, such as Song, Hei, Microsoft Yahei, Arial, Times New Roman, etc. They are all created and developed by different designers or design teams. Among them, some of the most common fonts, such as Song font and Hei font, are the product of the combination of Chinese calligraphy art and printing technology, and have been formed through many evolutions and improvements. Some other text fonts are the product of continuous development and improvement in the printing and design fields of Western countries.