Export OPML as PDF in MindNode

OPML2PDF.scpt

set folderPath to choose folder
set fileExtension to "opml"
tell application "Finder"
	try
		set the fileList to files of folderPath whose name extension is fileExtension
	end try
end tell
tell application "/Applications/MindNode.app"
	repeat with mindNodeFile in fileList
		open (mindNodeFile as alias)
		set mindNodeDocument to document 1
		set fileName to POSIX path of (mindNodeFile as alias)
		set baseName to (characters 1 thru -((count of fileExtension) + 3) of fileName) as string
		set exportFile to ((baseName & ".pdf") as POSIX file)
		tell mindNodeDocument to export to exportFile as PDF
		close window 1 without saving
	end repeat
end tell