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SECTION 8.4 Anno ta tions
KEY TYPE VALUE
IC array (Optional; PDF 1.4) An array of numbers in the range 0.0 to 1.0 specifying the
interior color with which to fill the annotation’s line endings (see Table 8.27). The
number of array elements determines the color space in which the color is de-
fined:
0 No color; transparent
1 DeviceGray
3 DeviceRGB
4 DeviceCMYK
BE dictionary (Optional; meaningful only for polygon annotations) A border effect dictionary de-
scribing an effect applied to the border described by the BS entry (see Table
8.18).
IT name (Optional; PDF 1.6) A name describing the intent of the polygon or polyline an-
notation (see also Table 8.21). The following values are valid:
PolygonCloud, which means that the annotation is intended to function as a
cloud object
PolyLineDimension (PDF 1.7), which indicates that the polyline annotation is
intended to function as a dimension
PolygonDimension (PDF 1.7), which indicates that the polygon annotation is
intended to function as a dimension
Measure dictionary (Optional; PDF 1.7) A measure dictionary (see Table 8.110) that specifies the
scale and units that apply to the annotation.
Text Markup Annotations
Text markup annotations appear as highlights, underlines, strikeouts (all PDF
1.3), or jagged (“squiggly”) underlines (PDF 1.4) in the text of a document. When
opened, they display a pop-up window containing the text of the associated note.
Table 8.30 shows the annotation dictionary entries specific to these types of an-
notations.
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