C#

using System;
using System.Windows.Forms;
using System.Drawing.Printing;
using System.Diagnostics;

namespace PrintTest
    {
    public partial class Form1 : Form
        {
        public Form1()
            {
            InitializeComponent();
            TimeIt();
            }

        private static void TimeIt()
            {
            PrintDocument pd = new PrintDocument();
            Stopwatch sw = new Stopwatch();
            TimeSpan ts1 = new TimeSpan(0);
            TimeSpan ts2 = new TimeSpan(0);
            TimeSpan ts3 = new TimeSpan(0);
            sw.Start();
            int Width;
            PageSettings pageSettings = pd.DefaultPageSettings;
            ts1 = sw.Elapsed;
            PaperSize ps = pageSettings.PaperSize;
            ts2 = sw.Elapsed;
            Width = ps.Width;
            ts3 = sw.Elapsed;
            sw.Stop();
            MessageBox.Show(sw.Elapsed +
                            "\n   ts1: " + ts1 +
                            "\n   ts2: " + ts2 +
                            "\n   ts3: " + ts3);
            }

        private void button1_Click(object sender, EventArgs e)
            {
            TimeIt();
            }
        }
    }

00:00:00.2231302
   ts1: 00:00:00.0000010
   ts2: 00:00:00.2231289
   ts3: 00:00:00.2231297

PaperSize ps = pageSettings.PaperSize;

Width = page.Document.DefaultPageSettings.PaperSize.Width;
Height = page.Document.DefaultPageSettings.PaperSize.Height;