Set Color depth - Grayscale 8 bit in C# and .NET


Complete code

´╗┐using System;
using System.IO;
using System.Collections;

namespace Sample
{
    class Sample
    {
        static void Main(string[] args)
        {

            string pdfPath = Path.GetFullPath(@"..\..\..\Excel.pdf");
            string imagePath = "Result.png";
            // Get your free 30-day key here:   
            // https://sautinsoft.com/start-for-free/

            SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

            f.OpenPdf(pdfPath);

            if (f.PageCount > 0)
            {
                //Set color depth: Grayscale 8 bit
                f.ImageOptions.ColorDepth = SautinSoft.PdfFocus.CImageOptions.eColorDepth.Grayscale8bpp;

                //Convert 1st page from PDF to image file
                if (f.ToImage(imagePath, 1) == 0)
                {
                    // 0 - converting successfully                
                    // 2 - can't create output file, check the output path
                    // 3 - converting failed
                    System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(imagePath) { UseShellExecute = true });
                }
            }
        }
    }
}

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Imports System
Imports System.IO
Imports System.Collections

Namespace Sample
	Friend Class Sample
		Shared Sub Main(ByVal args() As String)

			Dim pdfPath As String = Path.GetFullPath("..\..\..\Excel.pdf")
			Dim imagePath As String = "Result.png"
			' Get your free 30-day key here:   
			' https://sautinsoft.com/start-for-free/

			Dim f As New SautinSoft.PdfFocus()

			f.OpenPdf(pdfPath)

			If f.PageCount > 0 Then
				'Set color depth: Grayscale 8 bit
				f.ImageOptions.ColorDepth = SautinSoft.PdfFocus.CImageOptions.eColorDepth.Grayscale8bpp

				'Convert 1st page from PDF to image file
				If f.ToImage(imagePath, 1) = 0 Then
					' 0 - converting successfully                
					' 2 - can't create output file, check the output path
					' 3 - converting failed
					System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(imagePath) With {.UseShellExecute = True})
				End If
			End If
		End Sub
	End Class
End Namespace

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