DecksetExport.swift

import Foundation
import Quartz

extension Array {
    func each(doThis: (element: T) -> Void) {
        for e in self {
            doThis(element: e)
        }
    }
}

let documents = DecksetApp()?.documents.first?.slides.map { PDFDocument(data: $0.pdfData) }

let output = PDFDocument()

var pageIndex = 0

documents?.each { doc in
    for var i = 0; i < doc.pageCount(); i++ {
        let page = doc.pageAtIndex(i)
        output.insertPage(page, atIndex: pageIndex)
        pageIndex++
    }
}

output.writeToFile("/Users/marcelofabri/test.pdf")
println("Exported \(pageIndex) pages")