How to merge PDF files in C# and VB.Net

How to merge PDF files into one PDF
in C# and VB.Net.


Complete code

using System;
using System.IO;
using System.Collections;


namespace Sample
{
    class Test
    {
        static void Main(string[] args)
        {
            // Merge PDF files.
            SautinSoft.PdfVision v = new SautinSoft.PdfVision();

            //v.Serial = "XXXXXXXXXXXXXXX";

            // Let's merge several PDF files.
            string[] inpFiles = new string[] { @"..\..\simple text.pdf", @"..\..\table.pdf" };
            string outFile = "Merged.pdf";

            int ret = v.MergePDFFileArrayToPDFFile(inpFiles, outFile);

            // 0 - Merged successfully.
            // 1 - Error, can't merge PDF documents.
            // 2 - Error, can't create the output file, probably it used by another application.
            // 3 - Merging failed.
            // 4 - Merged successfully, but some files were not merged.
            if (ret == 0)
            {
                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile) { UseShellExecute = true });
            }
        }
    }
}

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            Imports System
Imports System.IO
Imports System.Collections


Namespace Sample
	Friend Class Test
		Shared Sub Main(ByVal args() As String)
			' Merge PDF files.
			Dim v As New SautinSoft.PdfVision()

			'v.Serial = "XXXXXXXXXXXXXXX"

			' Let's merge several PDF files.
			Dim inpFiles() As String = { "..\..\simple text.pdf", "..\..\table.pdf" }
			Dim outFile As String = "Merged.pdf"

			Dim ret As Integer = v.MergePDFFileArrayToPDFFile(inpFiles, outFile)

			' 0 - Merged successfully.
			' 1 - Error, can't merge PDF documents.
			' 2 - Error, can't create the output file, probably it used by another application.
			' 3 - Merging failed.
			' 4 - Merged successfully, but some files were not merged.
			If ret = 0 Then
				System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile) With {.UseShellExecute = True})
			End If
		End Sub
	End Class
End Namespace

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