标准编号：ISO/IEC TS 30135-4:2014
中文名称：信息技术 数字出版 EPUB3 第4部分：开放容纳格式
英文名称：Information technology — Digital publishing — EPUB3 — Part 4: Open Container Format
发布日期：2014-11
标准范围
This section is informativeThis specification, EPUB Open Container Format (OCF) 3.0, defines a file format and processing modelfor encapsulating the sets of related resources that comprise one or more EPUB? Publications into asingle-file container.This specification is one of a family of related specifications that compose EPUB 3, the third majorrevision of an interchange and delivery format for digital publications based on XML and Web Standards. Itis meant to be read and understood in concert with the other specifications that make up EPUB 3:The EPUB 3 Overview [EPUB3Overview], which provides an informative overview of EPUB and aroadmap to the rest of the EPUB 3 documents. The Overview should be read first.EPUB Publications 3.0 [Publications30], which defines publication-level semantics andoverarching conformance requirements for EPUB Publications.EPUB Content Documents 3.0 [ContentDocs30], which defines profiles of XHTML, SVG and CSSfor use in the context of EPUB Publications.EPUB Media Overlays 3.0 [MediaOverlays30], which defines a format and a processing model forsynchronization of text and audio.OCF is the required container technology for EPUB Publications. OCF may play a role in the followingworkflows:During the preparation steps in producing an electronic Publication, OCF may be used as thecontainer format when exchanging in-progress Publications between different individuals and/ordifferent organizations.When providing an electronic Publication from publisher or conversion house to the distribution orsales channel, OCF is the recommended container format to be used as the transport format.When delivering the final Publication to an EPUB Reading System or User, OCF is the requiredformat for the container that holds all of the assets that make up the Publication.The OCF specification defines the rules for structuring the file collection in the abstract: the "abstractcontainer". It also defines the rules for the representation of this abstract container within a ZIP archive:the "physical container". The rules for ZIP physical containers build upon the ZIP technologies used by[ODF]. OCF also defines a standard method for obfuscating embedded fonts for those EPUBPublications that require this functionality.?This specification supersedes Open Container Format (OCF) 2.0.1 [OCF2]. Refer to [EPUB3Changes] forinformation on differences between this specification and its predecessor.
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