set aHFSPath to (choose file of type {"com.adobe.pdf"} with prompt "Choose a PDF with Annotation")
set aPOSIX to POSIX path of aHFSPath
set aURL to (current application’s |NSURL|’s fileURLWithPath:aPOSIX)

set aPDFdoc to current application’s PDFDocument’s alloc()’s initWithURL:aURL
set pCount to aPDFdoc’s pageCount()

set firstPage to (aPDFdoc’s pageAtIndex:0)
–>　　(PDFPage) PDFPage, label 1

set anoList to (firstPage’s annotations()) as list
if anoList = {missing value} then return –指定PDF中にAnotationが存在しなかった
log anoList
(*
{(PDFAnnotationMarkup) Type: ’Highlight’, Bounds: (81, 624) [434, 53]
, ​​​​​(PDFAnnotationSquare) Type: ’Square’, Bounds: (50, 419) [212, 162]
, ​​​​​(PDFAnnotationSquare) Type: ’Square’, Bounds: (301, 107) [244, 484]
​​​}
*)

repeat with i in anoList
　　set aBounds to i’s |bounds|()
　　
　　log aBounds
　　(* {origin:{x:80.79, y:624.4106}, size:{width:433.6944, height:52.8918}} *)
　　(* {origin:{x:50.05553, y:419.1671}, size:{width:212.27807, height:162.3308}} *)
　　(* {origin:{x:300.6213, y:106.8405}, size:{width:244.0961, height:484.4566}} *)
　　
end repeat