ISO 19444-1:2016

INTERNATIONAL ISO
STANDARD 19444-1
First edition
2016-12-15
Document management — XML Forms
Data Format —
Part 1:
Use of ISO 32000-2 (XFDF 3.0)
Gestion de documents — Format de Données des Formulaires XML —
Partie 1: Utilisation de l’ISO 32000-2 (XFDF 3.0)
Reference number
ISO 19444-1:2016(E)
©
ISO 2016

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ISO 19444-1:2016(E)

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© ISO 2016, Published in Switzerland
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ISO 19444-1:2016(E)

Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Notation . 1
5 Introduction to XFDF . 1
5.1 General . 1
5.2 Forms data and annotations . 1
5.3 How to use this specification . 3
5.4 PDF, FDF and XFDF . 3
5.4.1 General. 3
5.4.2 Sample form in FDF and XFDF . 5
5.4.3 Sample annotation in FDF and XFDF. 6
5.5 Writing XFDF . 7
5.5.1 General. 7
5.5.2 Encoding and Namespace . 7
5.6 Understanding forms . 7
5.6.1 General. 7
5.6.2 Simple XFDF form . 7
5.6.3 Hierarchical XFDF form . 8
5.7 Understanding annotations . 9
5.7.1 General. 9
5.7.2 Simple XFDF annotation .10
5.7.3 Annotation with popup text .11
5.7.4 Annotation with comment .11
5.8 Implementation notes .13
5.8.1 General.13
5.8.2 String encoding conventions .13
5.8.3 Rich text strings .13
5.8.4 XML content model syntax .14
6 XFDF reference .15
6.1 General .15
6.2 XFDF elements .15
6.2.1 Elements .15
6.2.2 xfdf .15
6.2.3 f .15
6.2.4 ids .16
6.3 Form field elements .16
6.3.1 Fields .16
6.3.2 Field.17
6.3.3 value . .17
6.3.4 value-richtext .17
6.4 Annotation elements .18
6.4.1 annots .18
6.4.2 text .18
6.4.3 highlight . .19
6.4.4 underline .20
6.4.5 strikeout .20
6.4.6 squiggly .21
6.4.7 line .22
6.4.8 circle .23
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ISO 19444-1:2016(E)

6.4.9 square .24
6.4.10 caret .25
6.4.11 polygon .26
6.4.12 polyline .27
6.4.13 stamp .28
6.4.14 ink .29
6.4.15 freetext .30
6.4.16 fileattachment .31
6.4.17 sound.32
6.4.18 link .33
6.4.19 redact .33
6.4.20 projection .34
6.5 Annotation sub-elements .35
6.5.1 Action .35
6.5.2 appearance .35
6.5.3 BorderStyleAlt . . .35
6.5.4 contents .36
6.5.5 contents-richtext . .36
6.5.6 data .37
6.5.7 defaultappearance .37
6.5.8 defaultappearance .38
6.5.9 defaultstyle .38
6.5.10 Dest .38
6.5.11 File .39
6.5.12 gesture .39
6.5.13 Fit .39
6.5.14 FitB .40
6.5.15 FitBH . .40
6.5.16 FitBV .41
6.5.17 FitH .41
6.5.18 FitR . .41
6.5.19 FitV .42
6.5.20 GoTo .42
6.5.21 GoToR .43
6.5.22 inklist .43
6.5.23 Launch.43
6.5.24 Named .44
6.5.25 Named .44
6.5.26 OnActivation .44
6.5.27 overlayappearance .45
6.5.28 popup .45
6.5.29 resource .46
6.5.30 URI .46
6.5.31 vertices .47
6.5.32 XYZ .47
6.6 Annotation attributes .47
6.6.1 Overview .47
6.6.2 FDF annotation attributes .48
6.6.3 Common annotation attributes .48
6.6.4 Markup annotation attributes .49
6.6.5 Text markup annotation attributes .50
6.6.6 Text annotation attributes .51
6.6.7 Line annotation attributes .52
6.6.8 Circle and Square annotation attributes .54
6.6.9 Caret annotation attributes .55
6.6.10 Polygon and Polyline annotation attributes .56
6.6.11 Freetext annotation attributes .57
6.6.12 Stamp annotation attributes.58
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ISO 19444-1:2016(E)

6.6.13 Fileattachment annotation attributes .59
6.6.14 Sound annotation attributes .59
6.6.15 Popup annotation attributes .60
6.6.16 Link annotation attributes .60
6.6.17 Redaction annotation attributes .61
6.6.18 Border effect attributes .61
6.6.19 Border style attributes . .62
6.6.20 Border array attributes .62
6.6.21 Embedded file parameter attributes .63
6.6.22 Stream attributes .63
6.6.23 File specification attributes .64
6.6.24 Destination syntax attributes .64
6.6.25 Remote go-to attributes .64
6.6.26 Launch attributes .64
6.6.27 Named action attributes .65
6.6.28 URI attributes .65
6.6.29 Mac OS file information attributes .65
6.6.30 Miscellaneous attributes .66
Bibliography .67
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ISO 19444-1:2016(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the
Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 171, Document management applications,
Subcommittee SC 2, Document file formats, EDMS systems and authenticity of information.
A list of all parts in the ISO 19444 series can be found on the ISO website.
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ISO 19444-1:2016(E)

Introduction
This document describes the XML Forms Data Format, which is used to represent form data from PDF
(ISO 32000-2) in an XML tagset.
This format is derived from the Forms Data Format in PDF and is intended to be a more interchangeable
format for forms data.
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INTERNATIONAL STANDARD ISO 19444-1:2016(E)
Document management — XML Forms Data Format —
Part 1:
Use of ISO 32000-2 (XFDF 3.0)
1 Scope
This document specifies an XML format for representing forms data and annotations in the Portable
Document Format, ISO 32000-2 (PDF 2.0).
This document does not change or add any definitions for any components of ISO 32000-2.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 32000-2 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
4 Notation
All XFDF element names, XFDF attributes names and examples (XFDF and PDF) are written in fixed
width font. All inline PDF and FDF operators, keywords and the names of keys in PDF dictionaries are
written in bold font. All inline words that denote operands of PDF and FDF operators or values of PDF
dictionary keys are written in italic sans serif font.
Ellipses (…) are used within XFDF examples to indicate omitted detail.
5 Introduction to XFDF
5.1 General
XML Forms Data Format (XFDF) is a format for representing forms data and annotations in a PDF
document. This specification describes XFDF compatible with ISO 32000-2. XFDF is the XML version
of Forms Data Format (FDF), a simplified version of PDF for r
...