ISO 32000-2:2020
(Main)Document management — Portable document format — Part 2: PDF 2.0
Document management — Portable document format — Part 2: PDF 2.0
This document specifies a digital form for representing electronic documents to enable users to exchange and view electronic documents independent of the environment in which they were created or the environment in which they are viewed or printed. It is intended for developers of software that creates PDF files (PDF writers), software that reads existing PDF files and (usually) interprets their contents for display (PDF readers), software that reads and displays PDF content and interacts with the computer users to possibly modify and save the PDF file (interactive PDF processors) and PDF products that read and/or write PDF files for a variety of other purposes (PDF processors). (PDF writers and PDF readers are more specialised classifications of interactive PDF processors and all are PDF processors). This document does not specify the following: ? specific processes for converting paper or electronic documents to the PDF file format; ? specific technical design, user interface implementation, or operational details of rendering; ? specific physical methods of storing these documents such as media and storage conditions; ? methods for validating the conformance of PDF files or PDF processors; ? required computer hardware and/or operating system.
Gestion de documents — Format de document portable — Partie 2: PDF 2.0
General Information
Relations
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 32000-2
Second edition
2020-12
Document management — Portable
document format —
Part 2:
PDF 2.0
Gestion de documents — Format de document portable —
Partie 2: PDF 2.0
Reference number
©
ISO 2020
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2020 – All rights reserved
Contents Page
Foreword . vii
Introduction . viii
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 7
4 Notation . 15
4.1 General . 15
4.2 Established notations . 15
5 Version designations . 17
6 Conformance . 18
6.1 General . 18
6.2 Conforming PDF documents . 18
6.3 PDF processors . 18
7 Syntax . 20
7.1 General . 20
7.2 Lexical conventions . 21
7.3 Objects . 24
7.4 Filters . 34
7.5 File structure . 53
7.6 Encryption . 71
7.7 Document structure . 96
7.8 Content streams and resources . 110
7.9 Common data structures . 114
7.10 Functions . 123
7.11 File specifications . 132
7.12 Extensions dictionary . 141
8 Graphics . 145
8.1 General . 145
8.2 Graphics objects . 145
8.3 Coordinate systems . 149
8.4 Graphics state . 156
8.5 Path construction and painting . 169
8.6 Colour spaces . 177
8.7 Patterns . 219
8.8 External objects . 253
8.9 Images . 254
8.10 Form XObjects . 270
8.11 Optional content . 276
9 Text. 293
9.1 General . 293
9.2 Organisation and use of fonts . 293
9.3 Text state parameters and operators . 300
9.4 Text objects . 306
9.5 Introduction to font data structures . 311
9.6 Simple fonts . 313
9.7 Composite fonts . 327
9.8 Font descriptors . 343
9.9 Embedded font programs . 351
9.10 Extraction of text content . 355
10 Rendering . 360
10.1 General . 360
10.2 Raster output device native colour. 361
10.3 CIE-Based colour to device colour . 361
10.4 Conversions among device colour spaces . 361
10.5 Transfer functions . 364
10.6 Halftones . 366
10.7 Scan conversion details . 382
10.8 Rendering for separations . 385
11 Transparency . 387
11.1 General . 387
11.2 Overview of transparency . 387
11.3 Basic compositing computations . 389
11.4 Transparency groups. 402
11.5 Soft masks . 414
11.6 Specifying transparency in PDF . 415
11.7 Colour space and rendering issues . 425
12 Interactive features . 437
12.1 General . 437
12.2 Viewer preferences . 437
12.3 Document-level navigation . 441
12.4 Page-level navigation . 458
12.5 Annotations . 465
iv © ISO 2020 – All rights reserved
12.6 Actions . 506
12.7 Forms . 528
12.8 Digital signatures . 567
12.9 Measurement properties . 595
12.10 Geospatial features . 601
12.11 Document requirements . 606
13 Multimedia features . 614
13.1 General . 614
13.2 Multimedia. 614
13.3 Sounds . 637
13.4 Movies . 638
13.5 Alternate presentations . 640
13.6 3D Artwork .
...
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