Convert PDF to PNG image in C# and Visual Basic .NET with PDF Renderer SDK

The following samples show rendering PDF to PNG image in C# and Visual Basic .NET using PDF Renderer SDK.

C#

using System;

using Bytescout.PDFRenderer;


namespace PDF2PNG
{
	class Program
	{
		static void Main(string[] args)
		{
			// Create an instance of Bytescout.PDFRenderer.RasterRenderer object and register it.
			RasterRenderer renderer = new RasterRenderer();
			renderer.RegistrationName = "demo";
			renderer.RegistrationKey = "demo";

			// Load PDF document.
			renderer.LoadDocumentFromFile("multipage.pdf");

			for (int i = 0; i < renderer.GetPageCount(); i++)
			{
				// Render first page of the document to PNG image file.
				renderer.RenderPageToFile(i, RasterOutputFormat.PNG, "image" + i + ".png");
			}

			// Open the first output file in default image viewer.
			System.Diagnostics.Process.Start("image0.png");
		}
	}
}
&#91;/vb&#93;

<p><strong>VB.NET</strong></p>
[vb]
Imports Bytescout.PDFRenderer


Class Program
	Friend Shared Sub Main(args As String())

        ' Create an instance of Bytescout.PDFRenderer.RasterRenderer object and register it.
		Dim renderer As New RasterRenderer()
		renderer.RegistrationName = "demo"
		renderer.RegistrationKey = "demo"

		' Load PDF document.
		renderer.LoadDocumentFromFile("multipage.pdf")

		For i As Integer = 0 To renderer.GetPageCount() - 1
			' Render first page of the document to PNG image file.
			renderer.RenderPageToFile(i, RasterOutputFormat.PNG, "image" & i & ".png")
		Next

		' Open the first output file in default image viewer.
		System.Diagnostics.Process.Start("image0.png")
	End Sub
End Class