set docBreite to 148 
set docHoehe to 210 
set bleedOben to 3 
 
set numberEven to 5 
set numberResult to (numberEven mod 2 is 0) 
 
set fileSave to choose folder with prompt "Wählen Sie Ihren Ordner..." 
 
set maxNum to 16 
set i to 0 
 
tell application "Adobe InDesign CC 2019" 
	set indd to make document 
	 
	tell indd 
		tell document preferences of indd 
			set document bleed top offset to bleedOben 
			set document bleed uniform size to true 
			set properties to {facing pages:false, page width:docBreite, page height:docHoehe} 
			set pages per document to maxNum 
		end tell 
		repeat 
			set i to i + 1 
			if (i mod 2 is 0) then 
				tell margin preferences of page i of indd 
					set top to 30 
					set left to 50 
					set bottom to 60 
					set right to 10 
				end tell 
			else 
				tell margin preferences of page i of indd 
					set top to 50 
					set left to 10 
					set bottom to 20 
					set right to 5 
				end tell 
			end if 
			if i is maxNum then exit repeat 
		end repeat 
		 
	end tell 
end tell 

set facing pages of document preferences of indd to true 

set properties to {facing pages:true, page width:docBreite, page height:docHoehe}