Print PDF files in C# and VB.NET

using System;
using SautinSoft.Pdf;
using System.IO;

class Program
{
	static void Main()
	{
		// This property is necessary only for licensed version.
		//SautinSoft.Pdf.Serial = "XXXXXXXXXXX";

		using (PDF .Net document = PdfDocument.Load("Potato Beetle.pdf"))
		{
			// Print PDF document to default printer (e.g. 'Microsoft Print to Pdf').
			string printerName = null;
			document.Print(printerName);
		}
	}
}

using System.Windows;
using System.Windows.Controls;
using System.Windows.Xps.Packaging;
using SautinSoft.Pdf;
using Microsoft.Win32;

public partial class MainWindow : Window
{
	private PdfDocument document;

	public MainWindow()
	{
		// This property is necessary only for licensed version.
		//SautinSoft.Pdf.Serial = "XXXXXXXXXXX";

	}

	private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
	{
		if (this.document != null)
		this.document.Close();
	}

	private void LoadFileBtn_Click(object sender, RoutedEventArgs e)
	{
		OpenFileDialog openFileDialog = new OpenFileDialog();
		openFileDialog.Filter =
		"PDF files (*.pdf)|*.pdf";

		if (openFileDialog.ShowDialog() == true)
		{
			if (this.document != null)
			this.document.Close();

			this.document = PDF .Net.Load(openFileDialog.FileName);
			this.ShowPrintPreview();
		}
	}

	private void PrintFileBtn_Click(object sender, RoutedEventArgs e)
	{
		if (this.document == null)
		return;

		PrintDialog printDialog = new PrintDialog() { UserPageRangeEnabled = true };
		if (printDialog.ShowDialog() == true)
		{
			PrintOptions printOptions = new PrintOptions(printDialog.PrintTicket.GetXmlStream());

			printOptions.FromPage = printDialog.PageRange.PageFrom - 1;
			printOptions.ToPage = printDialog.PageRange.PageTo == 0 ? int.MaxValue : printDialog.PageRange.PageTo - 1;

			this.document.Print(printDialog.PrintQueue.FullName, printOptions);
		}
	}

	private void ShowPrintPreview()
	{
		XpsDocument xpsDocument = this.document.ConvertToXpsDocument(SaveOptions.Xps);

		// Note, XpsDocument must stay referenced so that DocumentViewer can access additional resources from it.
		// Otherwise, GC will collect/dispose XpsDocument and DocumentViewer will no longer work.
		this.DocViewer.Tag = xpsDocument;
		this.DocViewer.Document = xpsDocument.GetFixedDocumentSequence();
	}
}

using System;
using System.Drawing;
using System.Drawing.Printing;
using System.IO;
using System.Windows.Forms;
using SautinSoft.Pdf;

public partial class Form1 : Form
{
	private PdfDocument document;

	public Form1()
	{
		// This property is necessary only for licensed version.
		//SautinSoft.Pdf.Serial = "XXXXXXXXXXX";
	}

	private void Form1_FormClosing(object sender, FormClosingEventArgs e)
	{
		if (this.document != null)
		this.document.Close();
	}

	private void LoadFileMenuItem_Click(object sender, EventArgs e)
	{
		OpenFileDialog openFileDialog = new OpenFileDialog();
		openFileDialog.Filter =
		"PDF files (*.pdf)|*.pdf";

		if (openFileDialog.ShowDialog() == DialogResult.OK)
		{
			if (this.document != null)
			this.document.Close();

			this.document = PDF .Net.Load(openFileDialog.FileName);
			this.ShowPrintPreview();
		}
	}

	private void PrintFileMenuItem_Click(object sender, EventArgs e)
	{
		if (this.document == null)
		return;

		PrintDialog printDialog = new PrintDialog() { AllowSomePages = true };
		if (printDialog.ShowDialog() == DialogResult.OK)
		{
			PrinterSettings printerSettings = printDialog.PrinterSettings;
			PrintOptions printOptions = new PrintOptions();

			// Set PrintOptions properties based on PrinterSettings properties.
			printOptions.CopyCount = printerSettings.Copies;
			printOptions.FromPage = printerSettings.FromPage - 1;
			printOptions.ToPage = printerSettings.ToPage == 0 ? int.MaxValue : printerSettings.ToPage - 1;

			this.document.Print(printerSettings.PrinterName, printOptions);
		}
	}

	private void ShowPrintPreview()
	{
		// Create image for each Word document's page.
		Image[] images = this.CreatePrintPreviewImages();
		int imageIndex = 0;

		// Draw each page's image on PrintDocument for print preview.
		var printDocument = new PrintDocument();
		printDocument.PrintPage += (sender, e) =>
		{
			using (Image image = images[imageIndex])
			{
				var graphics = e.Graphics;
				var region = graphics.VisibleClipBounds;

				// Rotate image if it has landscape orientation.
				if (image.Width > image.Height)
				image.RotateFlip(RotateFlipType.Rotate270FlipNone);

				graphics.DrawImage(image, 0, 0, region.Width, region.Height);
			}

			++imageIndex;
			e.HasMorePages = imageIndex < images.Length;
		};

		this.PageUpDown.Value = 1;
		this.PageUpDown.Maximum = images.Length;
		this.PrintPreviewControl.Document = printDocument;
	}

	private Image[] CreatePrintPreviewImages()
	{
		int pageCount = this.document.Pages.Count;
		var images = new Image[pageCount];

		for (int pageIndex = 0; pageIndex < pageCount; ++pageIndex)
		{
			var imageStream = new MemoryStream();
			var imageOptions = new ImageSaveOptions(ImageSaveFormat.Png) { PageNumber = pageIndex };

			this.document.Save(imageStream, imageOptions);
			images[pageIndex] = Image.FromStream(imageStream);
		}

		return images;
	}

	private void PageUpDown_ValueChanged(object sender, EventArgs e)
	{
		this.PrintPreviewControl.StartPage = (int)this.PageUpDown.Value - 1;
	}
}