CHAPTER 8
586
Interactive Features
KEY
TYPE
VALUE
Prev
dictionary
dictionary
dictionary
dictionary
integer
(Required for all but the first item at each level; must be an indirect reference)
The previous item at this outline level.
(Required for all but the last item at each level; must be an indirect reference)
The next item at this outline level.
(Required if the item has any descendants; must be an indirect reference)
The
first of this item’s immediate children in the outline hierarchy.
(Required if the item has any descendants; must be an indirect reference)
The
last of this item’s immediate children in the outline hierarchy.
(Required if the item has any descendants)
If the item is open, the total num-
ber of its open descendants at all lower levels of the outline hierarchy. If the
item is closed, a negative integer whose absolute value specifies how many
descendants would appear if the item were reopened.
(Optional; not permitted if an
A
entry is present)
The destination to be dis-
played when this item is activated (see Section 8.2.1, “Destinations”; see also
(Optional; PDF 1.1; not permitted if a
Dest
entry is present)
The action to be
performed when this item is activated (see Section 8.5, “Actions”).
(Optional; PDF 1.3; must be an indirect reference)
The structure element to
which the item refers (see Section 10.6.1, “Structure Hierarchy”).
Note:
The ability to associate an outline item with a structure element (such as
the beginning of a chapter) is a PDF 1.3 feature. For backward compatibility
with earlier PDF versions, such an item should also specify a destination (
Dest
)
corresponding to an area of a page where the contents of the designated struc-
ture element are displayed.
Next
First
Last
Count
Dest
name,
byte string, or
array
dictionary
dictionary
A
SE
C
array
(Optional; PDF 1.4)
An array of three numbers in the range 0.0 to 1.0, repre-
senting the components in the
DeviceRGB
color space of the color to be used
for the outline entry’s text. Default value:
[ 0.0 0.0 0.0 ]
.
(Optional; PDF 1.4)
A set of flags specifying style characteristics for display-
ing the outline item’s text (see Table 8.5). Default value: 0.
F
integer
The value of the outline item dictionary’s
F
entry
(PDF 1.4)
is an unsigned 32-bit
integer containing flags specifying style characteristics for displaying the item. Bit
positions within the flag word are numbered from 1 (low-order) to 32 (high-