SECTION 10.6
877
Logical Structure
KEY
TYPE
VALUE
H
boolean
(Optional)
If
true
, the attribute is hidden; that is, it should not be shown in any user inter-
face element that presents the attributes of an object. Default value:
false
.
PDF documents that contain user properties must provide a
UserProperties
entry
with a value of
true
in the document’s mark information dictionary (see
whether it is necessary to search the structure tree for elements containing user
properties.
Part
Name
,
Part Number
,
Supplier
, and
Price
.
Example 10.14
100 0 obj
<< /Type /StructElem
/S /Figure
% Structure type
/P 50 0 R
% Parent in structure tree
/A << /O /UserProperties
% Attribute object
/P [
% Array of user properties
<< /N (Part Name) /V (Framostat) >>
<< /N (Part Number) /V 11603 >>
<< /N (Supplier) /V (Just Framostats) /H true >> % Hidden attribute
<< /N (Price) /V -37.99 /F ($37.99) >>
% Formatted value
]
>>
>>
endobj
10.6.5 Example of Logical Structure
The structure tree root (object 300) contains elements with structure types
Chap
(object 301) and
Para
(object 304). The
Chap
element, titled
Chapter 1
, contains
elements with types
Head1
(object 302) and
Para
(object 303).
These elements are mapped to the standard structure types specified in Tagged
PDF (see Section 10.7.3, “Standard Structure Types”) by means of the role map
specified in the structure tree root. Objects 302 through 304 have attached at-
tributes (see Section 10.6.4, “Structure Attributes”and Section 10.7.4, “Standard