SECTION 8.3
597
Page-Level Navigation
TABLE 8.12 Entries in a bead dictionary
KEY
TYPE
VALUE
Type
name
dictionary
(Optional)
The type of PDF object that this dictionary describes; if present, must be
Bead
for a bead dictionary.
(Required for the first bead of a thread; optional for all others; must be an indirect refer-
ence)
The thread to which this bead belongs.
Note:
In PDF 1.1, this entry is permitted only for the first bead of a thread. In PDF 1.2
and higher, it is permitted for any bead but required only for the first.
T
N
dictionary
dictionary
dictionary
rectangle
(Required; must be an indirect reference)
The next bead in the thread. In the last bead,
this entry points to the first.
(Required; must be an indirect reference)
The previous bead in the thread. In the first
bead, this entry points to the last.
(Required; must be an indirect reference)
The page object representing the page on
which this bead appears.
(Required)
A rectangle specifying the location of this bead on the page.
V
P
R
Example 8.6
22 0 obj
<< /F 23 0 R
/I << /Title ( Man Bites Dog ) >>
>>
endobj
23 0 obj
<< /T
/N
/V
/P
/R
>>
endobj
22 0 R
24 0 R
25 0 R
80R
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