CHAPTER 3
146
Syntax
KEY
TYPE
VALUE
TrimBox
rectangle
(Optional; PDF 1.3)
A rectangle, expressed in default user space units, de-
fining the intended dimensions of the finished page after trimming (see
CropBox
.
(Optional; PDF 1.3)
A rectangle, expressed in default user space units, de-
fining the extent of the page’s meaningful content (including potential
white space) as intended by the page’s creator (see Section 10.10.1, “Page
CropBox
.
(Optional; PDF 1.4)
A
box color information dictionary
specifying the col-
ors and other visual characteristics to be used in displaying guidelines on
the screen for the various page boundaries (see “Display of Page Bound-
own current default settings.
(Optional)
A
content stream
(see Section 3.7.1, “Content Streams”) de-
scribing the contents of this page. If this entry is absent, the page is empty.
The value may be either a single stream or an array of streams. If the value
is an array, the effect is as if all of the streams in the array were concatenat-
ed, in order, to form a single stream. This allows PDF producers to create
image objects and other resources as they occur, even though they inter-
rupt the content stream. The division between streams may occur only at
the boundaries between lexical tokens (see Section 3.1, “Lexical Conven-
plications that consume or produce PDF files are not required to preserve
the existing structure of the
Contents
array. (See implementation note 36
in Appendix H.)
ArtBox
rectangle
BoxColorInfo
dictionary
Contents
stream or array
Rotate
integer
(Optional; inheritable)
The number of degrees by which the page should
be rotated clockwise when displayed or printed. The value must be a mul-
tiple of 90. Default value: 0.
(Optional; PDF 1.4)
A
group attributes dictionary
specifying the attributes
of the page’s page group for use in the transparent imaging model (see
Sections 7.3.6, “Page Group,” and 7.5.5, “Transparency Group XObjects”).
(Optional)
A stream object defining the page’s
thumbnail image
(see Sec-
(Optional; PDF 1.1; recommended if the page contains article beads)
An ar-
ray of indirect references to
article beads
appearing on the page (see Sec-
The beads are listed in the array in natural reading order.
Group
dictionary
Thumb
stream
array
B