set SourceFolder to choose folder 
tell application "Finder" 
	set thePDFs to every file of SourceFolder whose name ends with ".pdf" 
	repeat with theItem in thePDFs 
		open theItem 
		tell application "Adobe Acrobat Professional" 
			open theItem 
			print theItem 
		end tell 
	end repeat 
end tell 

keystroke "t" using command down 

SourceFile = this.path.split("/").pop();  
TargetFile = SourceFile.replace(".pdf", ".summ.pdf"); 
PrintTarget = this.path.replace(SourceFile, TargetFile); 
goPrint = app.openDoc(PrintTarget); 
goPrint.print 
({ 
    bUI: false, 
    bSilent: true, 
    bShrinkToFit: true 
});