将活动表单打印为PDF

Question

我正在尝试将我的活动表单打印到PDF。我已成功打印了它，但我无法更改它以适合/拉伸PDF文档的整个页面。

以下是我使用的代码。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

// additional namespaces
using System.Collections;
using System.Diagnostics;
using System.IO;
using System.Drawing.Printing;
using Microsoft.Win32;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        private Button printButton = new Button();
        private PrintDocument printDocuments1 = new PrintDocument();

        public Form1()
        {
            InitializeComponent();
            printButton.Click += new EventHandler(button12_Click);
            printDocuments1.PrintPage += new PrintPageEventHandler(printDocument1_PrintPage);
        }


         Bitmap memoryImages;

         private void CaptureScreens()
         {
             Graphics myGraphics = this.CreateGraphics();
             Size s = this.Size;
             memoryImages = new Bitmap(s.Width, s.Height, myGraphics);
             Graphics memoryGraphics = Graphics.FromImage(memoryImages);
             memoryGraphics.CopyFromScreen(this.Location.X, this.Location.Y, 0, 0, s);
         }

         private void printDocument1_PrintPage(System.Object sender,
                    System.Drawing.Printing.PrintPageEventArgs e)
         {
             e.Graphics.DrawImage(memoryImages, 0, 0);
         }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button12_Click(object sender, EventArgs e)
        {
            CaptureScreens();
            printDocuments1.Print();
        }
    }
}

任何人都可以帮我解决如何调整图像大小以适应整个PDF文档的问题吗？非常感谢您的帮助。