get Character Index
fun getCharacterIndex(pageIndex: Int, x: Double, y: Double, xTolerance: Double, yTolerance: Double): Int
Get the index of a character at or nearby a certain position on the page
Return
The zero-based index of the character at, or nearby the point (x,y). If there is no character at or nearby the point, return value will be -1. If an error occurs, -3 will be returned.
Parameters
page Index
index of page.
x
X position in PDF "user space".
y
Y position in PDF "user space".
x Tolerance
An x-axis tolerance value for character hit detection, in point unit.
y Tolerance
A y-axis tolerance value for character hit detection, in point unit.