     var prefix: String { get }
     var config: CreatorConfiguration { get }
     var extname: String { get }
+    var scale: CGFloat { get }
 
     func suffix(size: CGSize) -> String
     func data(image: UIImage) -> NSData

    var extname: String {
        return "pdf"
    }

    var sizes = [CGSizeMake(200.0, 100.0)]


    }
    var extname: String {
        return "png"
    }
    var scale: CGFloat {
        return 1.0
    }

    var lengths: [CGFloat] = [
