SECTION 3.6
141
Document Structure
KEY
TYPE
VALUE
AA
dictionary
(Optional; PDF 1.4)
An additional-actions dictionary defining the ac-
tions to be taken in response to various
trigger events
affecting the docu-
ment as a whole (see “Trigger Events” on page 648). (See also
(Optional; PDF 1.1)
A URI dictionary containing document-level infor-
mation for
URI (uniform resource identifier) actions
(see “URI Actions”
(Optional; PDF 1.2)
The document’s
interactive form (AcroForm) dictio-
nary
(see Section 8.6.1, “Interactive Form Dictionary”).
(Optional; PDF 1.4; must be an indirect reference)
A
metadata stream
containing metadata for the document (see Section 10.2.2, “Metadata
(Optional; PDF 1.3)
The document’s structure tree root dictionary (see
(Optional; PDF 1.4)
A mark information dictionary containing informa-
tion about the document’s usage of Tagged PDF conventions (see Sec-
(Optional; PDF 1.4)
A
language identifier
specifying the natural language
for all text in the document except where overridden by language speci-
fications for structure elements or marked content (see Section 10.8.1,
considered unknown.
(Optional; PDF 1.3)
A Web Capture information dictionary containing
state information used by the Acrobat Web Capture (AcroSpider) plug-
in extension (see Section 10.9.1, “Web Capture Information Dictio-
(Optional; PDF 1.4)
An array of output intent dictionaries describing the
color characteristics of output devices on which the document might be
rendered (see “Output Intents” on page 970).
(Optional; PDF 1.4)
A page-piece dictionary associated with the docu-
ment (see Section 10.4, “Page-Piece Dictionaries”).
(Optional; PDF 1.5; required if a document contains optional content)
The
document’s optional content properties dictionary (see Section 4.10.3,
URI
dictionary
AcroForm
dictionary
stream
Metadata
StructTreeRoot
dictionary
dictionary
MarkInfo
Lang
text string
SpiderInfo
dictionary
OutputIntents
array
PieceInfo
dictionary
dictionary
OCProperties