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ISO/TC 171/SC 2/WG 8 N 753

ISO/TC 171/SC 2/WG 8

PDF specification

Email of convenor: mahardy@adobe.com

Convenorship: ANSI (United States)

2017-01-09 ISO 32000-2 FDIS

Document type: Other draft

Date of document: 2017-01-11

Expected action: INFO

Background: The most recent DIS ballot for ISO 32000-2 approved the draft with comments. The publication limit

date is 2017-0506. Given the publication date, ISO has advised us to conduct a 4-week committee

ballot accepting the changes from the comments and sending the document to publication. We

discussed this during the week of PDF meetings in Sydney. You may still submit comments with the

committee ballot.

The project leaders are aware that the tags present on this FDIS version are inadequate for

accessibility purposes. It is their intention to improve this state of affairs before the International

Standard itself is published.

Committee URL: http://isotc.iso.org/livelink/livelink/open/tc171sc2wg8

ISO/DIS 32000-2

Contents Page

Foreword ..................................................................................................................................................................... 1

Introduction ............................................................................................................................................................... 2

Document management – Portable Document Format – Part 2: PDF 2.0 ................................................ 7

1 Scope ............................................................................................................................................................... 7

2 Normative references ................................................................................................................................ 8

3 Notation ...................................................................................................................................................... 15

3.1 Established notations ............................................................................................................................. 15

4 Terms and definitions ............................................................................................................................ 16

5 Version designations .............................................................................................................................. 23

6 Conformance ............................................................................................................................................. 24

6.1 Conforming PDF documents ................................................................................................................. 24

6.2 PDF processors ......................................................................................................................................... 24

7 Syntax .......................................................................................................................................................... 26

7.1 General ........................................................................................................................................................ 26

7.2 Lexical conventions ................................................................................................................................. 27

7.3 Objects......................................................................................................................................................... 29

7.4 Filters .......................................................................................................................................................... 40

7.5 File structure ............................................................................................................................................. 58

7.6 Encryption ................................................................................................................................................. 75

7.7 Document structure ................................................................................................................................ 99

7.8 Content streams and resources ......................................................................................................... 111

7.9 Common data structures ..................................................................................................................... 115

7.10 Functions .................................................................................................................................................. 123

7.11 File specifications .................................................................................................................................. 132

7.12 Extensions dictionary ........................................................................................................................... 140

8 Graphics .................................................................................................................................................... 143

8.1 General ...................................................................................................................................................... 143

8.2 Graphics objects ..................................................................................................................................... 143

8.3 Coordinate systems ............................................................................................................................... 147

8.4 Graphics state ......................................................................................................................................... 154

8.5 Path construction and painting ......................................................................................................... 166

8.6 Colour spaces .......................................................................................................................................... 174

8.7 Patterns .................................................................................................................................................... 214

8.8 External objects ...................................................................................................................................... 248

ISO/DIS 32000-2

8.9 Images ....................................................................................................................................................... 249

8.10 Form XObjects......................................................................................................................................... 265

8.11 Optional content .................................................................................................................................... 271

9 Text ............................................................................................................................................................ 287

9.1 General ...................................................................................................................................................... 287

9.2 Organization and use of fonts ............................................................................................................ 287

9.3 Text state parameters and operators .............................................................................................. 294

9.4 Text objects ............................................................................................................................................. 300

9.5 Introduction to font data structures ................................................................................................ 305

9.6 Simple fonts ............................................................................................................................................. 306

9.7 Composite fonts ...................................................................................................................................... 320

9.8 Font descriptors ..................................................................................................................................... 336

9.9 Embedded font programs ................................................................................................................... 344

9.10 Extraction of text content .................................................................................................................... 348

10 Rendering ................................................................................................................................................. 352

10.1 General ...................................................................................................................................................... 352

10.2 Raster output device native colour .................................................................................................. 353

10.3 CIE-Based colour to device colour .................................................................................................... 353

10.4 Conversions among device colour spaces ...................................................................................... 353

10.5 Transfer functions ................................................................................................................................. 356

10.6 Halftones .................................................................................................................................................. 357

10.7 Scan conversion details ....................................................................................................................... 373

10.8 Rendering for separations .................................................................................................................. 377

11 Transparency .......................................................................................................................................... 378

11.1 General ...................................................................................................................................................... 378

11.2 Overview of transparency ................................................................................................................... 378

11.3 Basic compositing computations ...................................................................................................... 380

11.4 Transparency groups ........................................................................................................................... 393

11.5 Soft masks ................................................................................................................................................ 405

11.6 Specifying transparency in PDF ........................................................................................................ 406

11.7 Colour space and rendering issues .................................................................................................. 416

12 Interactive features ............................................................................................................................... 427

12.1 General ...................................................................................................................................................... 427

12.2 Viewer preferences ............................................................................................................................... 427

12.3 Document-level navigation ................................................................................................................. 430

12.4 Page-level navigation ........................................................................................................................... 447

12.5 Annotations ............................................................................................................................................. 454

12.6 Actions ...................................................................................................................................................... 491

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zlxyzy

2024-03-30

是草案！！！ This document is not an ISO International Standard. It is distributed for review and comment. It is subject to change without notice and may not be referred to as an International Standard. #内容详尽