Copy coordinate from pdf (manually or programmatically)

Hi community,

I am looking for a way to extract/copy:

1. coordinate of a point(s) in the pdf

2. coordinate of a selected text area(s)

3. coordinate of a highlighted area(s)

4. coordinate of a circle(s)/shape(s)

I could only enable cursor coordinates but I am not sure how to copy that coordinate (manually or programatically).

Please suggest if there is a way to achieve this. Thank you.