PdfTextMarkupAnnotation.VisualQuadPoints Property
Gets or sets the annotation quad points.
Property Value
An array of 4×n numbers specifying the coordinates of n quadrilaterals in default user space.
Remarks
Each quadrilateral shall encompasses a word or group of contiguous words in the text underlying the annotation. The coordinates for each quadrilateral shall be given in the order:
x1 y1 x2 y2 x3 y3 x4 y4
specifying the quadrilateral's four vertices in counterclockwise order.
Note: This is the Acrobat order that the library also uses: (x1 y1) is the top left corner, (x2 y2) is the top right corner, (x3 y3) is the bottom left corner, (x4 y4) is the bottom right corner.