ISO/IEC 14496的这一部分规定了复合字体表示法，这是一种基于XML的文档格式，允许将单个组件字体资源组合成单个虚拟字体。Unicode标准的发展以及代表世界上大多数语言和书写系统的新字符的加入，带来了Unicode字符库的显著增加，这一过程在未来可能会继续。因此，将支持不同语言和Unicode范围的多种单独字体组合在一个虚拟字体描述中的能力为多媒体的各种用户和创作者提供了机会，图形和文本内容，以支持世界上所有的语言，并利用现有的字体呈现解决方案，这些解决方案在当前的计算平台上实现，并部署在许多现有设备上。

This part of ISO/IEC 14496 specifies the Composite Font Representation, an XML-based document format that allows combining individual component font resources into a single virtual font. Recent advances in developing the Unicode Standard and the addition of new characters that represent most of the world's languages and writing systems have resulted in a significant increase of the Unicode character repertoire, and this process is likely to continue in the future. Therefore, the ability to combine a number of individual fonts supporting different languages and Unicode ranges in a single virtual font description provides the opportunity for various users and creators of multimedia, graphics and textual content to support all of the world's languages and utilize the existing font rendering solutions that are implemented in current computing platforms and deployed in many existing devices.