13.1 概述

13.1 General

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本条款描述了支持嵌入和播放多媒体内容的 PDF 功能。它包含以下子条款：

• 13.2“多媒体”，描述了 PDF 1.5 中引入的全套多媒体功能。
• 13.3“声音”和 13.4“电影”，描述了自 PDF 1.2 以来支持的功能。
• 13.5“替代演示”，描述了 PDF 1.4 中引入的幻灯片功能。
• 13.6“3D 艺术品”，描述了 PDF 1.6 中引入的在文档中嵌入三维图形的功能。

This clause describes those features of PDF that support embedding and playing multimedia content. It contains the following sub-clauses:

• 13.2, “Multimedia,” describes the comprehensive set of multimedia capabilities that were introduced in PDF 1.5.
• 13.3, “Sounds,” and 13.4, “Movies,” describe features that have been supported since PDF 1.2.
• 13.5, “Alternate Presentations,” describes a slideshow capability that was introduced in PDF 1.4.
• 13.6, “3D Artwork,” describes the capability of embedding three-dimensional graphics in a document, introduced in PDF 1.6.