property |NSURL| : a reference to current application’s |NSURL|
property NSUUID : a reference to current application’s NSUUID
property NSArray : a reference to current application’s NSArray
property NSString : a reference to current application’s NSString
property NSPredicate : a reference to current application’s NSPredicate
property PDFDocument : a reference to current application’s PDFDocument
property NSFileManager : a reference to current application’s NSFileManager
property NSURLPathKey : a reference to current application’s NSURLPathKey
property NSMutableArray : a reference to current application’s NSMutableArray
property NSSortDescriptor : a reference to current application’s NSSortDescriptor
property NSURLIsPackageKey : a reference to current application’s NSURLIsPackageKey
property NSURLIsDirectoryKey : a reference to current application’s NSURLIsDirectoryKey
property NSURLTypeIdentifierKey : a reference to current application’s NSURLTypeIdentifierKey
property NSURLContentModificationDateKey : a reference to current application’s NSURLContentModificationDateKey
property NSDirectoryEnumerationSkipsHiddenFiles : a reference to current application’s NSDirectoryEnumerationSkipsHiddenFiles

set targDegree to 270 — targDegree have to be in {0, 90, 180, 270, 360} in clockwise

–set inFiles to (choose file of type {"pdf"} with prompt "Choose your PDF files:" with multiple selections allowed)
tell application "Finder"
　　set inFiles to selection as alias list
end tell
if inFiles = {} then return

–指定のAlias listのうちPDFのみ抽出
set filRes1 to filterAliasListByUTI(inFiles, "com.adobe.pdf") of me
if filRes1 = {} then return

–選択中のファイルのうちの１つから親フォルダを求め、出力先ファイルパスを組み立てる
set outPathTarg to POSIX path of (first item of filRes1)
set pathString to NSString’s stringWithString:outPathTarg
set newPath to (pathString’s stringByDeletingLastPathComponent()) as string

repeat with i in filRes1
　　set destPosixPath to newPath & "/" & ((NSUUID’s UUID()’s UUIDString()) as string) & ".pdf"
　　rotatePDFandSaveAt(i, destPosixPath, targDegree) of me
end repeat

–与えられたPOSIX pathのPDFを指定の角度に回転させて新規指定パスに書き出す
on rotatePDFandSaveAt(oldPath as string, newPath as string, aDegree as integer)
　　
　　–Error Check
　　if aDegree is not in {0, 90, 180, 270, 360} then error "Wrong Degree"
　　
　　set aURL to current application’s |NSURL|’s fileURLWithPath:oldPath
　　set aPDFdoc to PDFDocument’s alloc()’s initWithURL:aURL
　　
　　set pCount to aPDFdoc’s pageCount() –count pages
　　
　　–Make Blank PDF
　　set newPDFdoc to PDFDocument’s alloc()’s init()
　　
　　–Rotate Each Page
　　repeat with i from 0 to (pCount – 1)
　　　　set aPage to (aPDFdoc’s pageAtIndex:i)
　　　　
　　　　–Set Degree
　　　　set curDegree to aPage’s |rotation|() –Get Current Degree
　　　　(aPage’s setRotation:(aDegree + curDegree)) –Set New Degree
　　　　
　　　　(newPDFdoc’s insertPage:aPage atIndex:i)
　　end repeat
　　
　　set aRes to newPDFdoc’s writeToFile:newPath
　　return aRes as boolean
　　
end rotatePDFandSaveAt

–Alias listから指定UTIに含まれるものをPOSIX pathのリストで返す
on filterAliasListByUTI(aList, targUTI)
　　set newList to {}
　　repeat with i in aList
　　　　set j to POSIX path of i
　　　　set tmpUTI to my retUTIfromPath(j)
　　　　set utiRes to my filterUTIList({tmpUTI}, targUTI)
　　　　if utiRes is not equal to {} then
　　　　　　set the end of newList to j
　　　　end if
　　end repeat
　　return newList
end filterAliasListByUTI

–指定のPOSIX pathのファイルのUTIを求める
on retUTIfromPath(aPOSIXPath)
　　set aURL to |NSURL|’s fileURLWithPath:aPOSIXPath
　　set {theResult, theValue} to aURL’s getResourceValue:(reference) forKey:NSURLTypeIdentifierKey |error|:(missing value)
　　
　　if theResult = true then
　　　　return theValue as string
　　else
　　　　return theResult
　　end if
end retUTIfromPath