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" };
            FileInfo outFile = new FileInfo(@"Result.pdf");

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

            // 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)
            {
                // Open the resulting PDF document in a default PDF Viewer.
                System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile.FullName) { UseShellExecute = true });
            }
        }
    }
}

Download.

        
            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 New FileInfo("Result.pdf")

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

            ' 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
                ' Open the resulting PDF document in a default PDF Viewer.
                System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile.FullName) With {.UseShellExecute = True})
            End If
        End Sub
    End Class
End Namespace

Download.

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