ISO_IEC_23736-1_2020E-Character_PDF_document.pdf

Information technology Digital publishing EPUB 3.0.1 Part 1:OverviewTechnologies de linformation Publications numriques EPUB 3.0.1 Partie 1:Aperu gnralINTERNATIONAL STANDARDISO/IEC23736-1Reference numberISO/IEC 23736-1:2020(E)First edition2020-02 ISO/IEC 2020 ISO/IEC 23736-1:2020(E)ii ISO/IEC 2020 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2020All rights reserved.Unless otherwise specified,or required in the context of its implementation,no part of this publication may be reproduced or utilized otherwise in any form or by any means,electronic or mechanical,including photocopying,or posting on the internet or an intranet,without prior written permission.Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCP 401 Ch.de Blandonnet 8CH-1214 Vernier,GenevaPhone:+41 22 749 01 11Fax:+41 22 749 09 47Email:copyrightiso.orgWebsite:www.iso.orgPublished in SwitzerlandISO/IEC 23736-1:2020(E)ISO/IEC 2020 All rights reserved iiiForeword ISO(the International Organization for Standardization)and IEC(the International ElectrotechnicalCommission)form the specialized system for worldwide standardization.National bodies that are members of ISO or IEC participate in the development of InternationalStandards through technicalcommitteesestablishedbytherespectiveorganizationtodealwithparticularfieldsoftechnicalactivity.ISO and IEC technical committees collaborate in fields of mutual interest.Other internationalorganizations,governmentalandnongovernmental,inliaisonwithISOandIEC,alsotakepartinthework.The procedures used to develop this document and those intended for its further maintenance aredescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofdocumentshouldbenoted(seewww.iso.org/directives).Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.ISOandIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.Details of any patent rights identified during the development of the document will be in the Introductionand/orontheISOlistofpatentdeclarationsreceived(seewww.iso.org/patents)ortheIEClistofpatentdeclarationsreceived(seehttp:/patents.iec.ch).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.For an explanation of the voluntary nature of standards,the meaning of ISO specific terms andexpressionsrelatedtoconformityassessment,aswellasinformationaboutISOsadherencetotheWorldTradeOrganization(WTO)principlesintheTechnicalBarrierstoTrade(TBT),seewww.iso.org/iso/foreword.html.ThisdocumentwaspreparedbytheWorldWideWebConsortium(W3C)(asEPUB3Overview)anddraftedinaccordancewithitseditorialrules.It was adopted,under the JTC 1 PAS procedure,by Joint Technical Committee ISO/IEC JTC 1,Information technology.AlistofallpartsintheISO/IEC23736seriescanbefoundontheISOwebsitete.Anyfeedbackorquestionsonthisdocumentshouldbedirectedtotheusersnationalstandardsbody.Acompletelistingofthesebodiescanbefoundatwww.iso.org/members.html.EPUB 3 OverviewRecommended Specification 26 June 2014THIS VERSIONhttp:/www.idpf.org/epub/301/spec/epub-overview-20140626.htmlLATEST VERSIONhttp:/www.idpf.org/epub3/latest/overviewPREVIOUS VERSIONhttp:/www.idpf.org/epub/301/spec/epub-overview-20140228.htmlA diff of changes from the previous version is also available.Copyright 2010-2013 International Digital Publishing ForumAll rights reserved.This work is protected under Title 17 of the United States Code.Reproduction anddissemination of this work with changes is prohibited except with the written permission of the InternationalDigital Publishing Forum(IDPF).EPUB is a registered trademark of the International Digital Publishing Forum.EditorsGarth Conboy,Google Inc.Matt Garrish,Invited ExpertMarkus Gylling,International Digital Publishing Forum(IDPF)William McCoy,International Digital Publishing Forum(IDPF)MURATA Makoto,JEPA EPUB Study GroupDaniel Weck,DAISY ConsortiumThis document is informativeTABLE OF CONTENTS1.Introduction1.1.Overview1.2.Roadmap2.Features2.1.Package Document2.2.Navigation2.2.1.Reading Order2.2.2.Navigation Document2.3.Linking2.4.Metadata2.5.Content DocumentsISO/IEC 23736-1:2020(E)ISO/IEC 2020 All rights reserved1 2.6.Fixed Layouts2.7.Rendering and CSS2.8.Multimedia2.9.Fonts2.10.Scripting2.11.Text-to-speech2.12.Container3.Global Language Support3.1.Metadata3.2.Content Documents3.3.CSS3.4.Fonts3.5.Text-to-speech3.6.Container4.Accessibility4.1.Navigation4.2.Semantic Markup4.3.Dynamic Layouts4.4.Content Descriptions4.5.Aural Renditions and Media Overlays4.6.Fallbacks4.7.ScriptingA.GlossaryB.Acknowledgements and ContributorsB.1.EPUB 3.0B.2.EPUB 2.0.1B.3.EPUB 1.0References1 Introduction1.1 OverviewThe EPUB specification is a distribution and interchange format standard for digital publications anddocuments.EPUB defines a means of representing,packaging and encoding structured andsemantically enhanced Web content in