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Adobe Acrobat SDK
Adobe® Supplement to the ISO 32000
8.6.7 XFA Forms
Place the following material at the end of this section.
Incorporation of XFA Datasets into a PDF/A-2 Conforming File
To support PDF/A-2 conforming files, ExtensionLevel 3 adds support for XML form data (XFA datasets)
through the
(See
"TABLE 3.28 Entries in the name dictionary" on page
permitted in a PDF/A-2 conforming file, XML forms are not. Such XML forms are specified as XDP streams
referenced from interactive form dictionaries. XDP streams can contain XFA datasets.
For applications that convert PDF documents to PDF/A-2, the
relocation of XML form data from XDP streams in a PDF document into the
The
XFAResources
name is created at the time the document is converted to a PDF/A-2 conforming file. The stream contains
the
<xfa:datasets>
In addition to data values for XML form fields, the
of other types of information that may be useful for other workflows, including data that is not bound to
form fields, and one or more XML signature(s).
See the XML Architecture, XML Forms Architecture (XFA) Specification, version 2.6 in the Bibliography.
8.8 Measurement Properties
Add new entries
shown in gray. See Section
KEY
Measure
PtData
On page 745, modify the following paragraph to reflect the new geospatial coordinate system. Unchanged
content appears in gray.
Table 8.110 shows the entries in a measure dictionary. PDF 1.6 defines only a single type of coordinate
system, a rectilinear coordinate system, specified by the value
as one in which the x and y axes are perpendicular and have units that increment linearly (to the right and
up, respectively).
the
Subtype
of coordinate systems.
name tree, which is part of the name dictionary of the document catalog.
XFAResources
name tree consists of a string name and an indirect reference to a stream. The string
element of the XFA, comprised of
and
Measure
PtData
8.8.1 Geospatial
TABLE 8.109 Entries in a viewport dictionary
TYPE
dictionary
dictionary
Extension level 3 defines a geospatial coordinate system specified by the value
entry.
Other subtypes are permitted, providing the flexibility to measure using other types
23.) While Acrobat forms (and form data) are
<xfa:data>
<xfa:data>
to Table 8.109 in support of geospatial content. Unchanged content is
Features, on
page
49.
VALUE
(Optional) A measure dictionary (see Table 8.110,
specifies the scale and units that apply to the image.
(Optional; ExtensionLevel 3) A point data dictionary (see Table 111d,
page
53) that specifies the extended geospatial data that applies to
the image.
Interactive Features (Chapter 8 in PDF Reference)
name tree supports
XFAResources
XFAResources
elements.
elements enable the storage and retrieval
for the
entry, which is defined
RL
Subtype
8.6.7 XFA Forms
48
name tree.
page
49) that
for
GEO
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