Font distribution system and method of font distribution

Provided is a font delivery system suppressing an illegal of use the font without sacrificing the time required to display the characters. The font delivery system includes a web server delivering an HTML document, a first delivery font file and a second delivery font file; a document browsing device displaying the HTML document; and a communication line. A browsing control unit of the document browsing device is configured to execute a separation process of separating the first delivery font file into obfuscated information and first divided font data based on keyword information and separating the second delivery font file into salt information and second divided font data; and a combination process of combining the first divided font data and the second divided font data.