The first, please download and install VeryPDF PDF Split-Merge software from following web page,
https://www.verypdf.com/pdfpg/index.html#dl
You can download it from following URL too,
https://www.verypdf.com/pdfpg/pdfpg.exe
All files will be installed to "C:\Program Files\VeryPDF PDF Split-Merge v3.0" folder in your system.
Now, please run “Microsoft Visual Studio 2010” application, create a blank VB.NET project, copy and paste following VB.NET code into this blank VB.NET project, compile and run it,
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Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim newProcess As Process = New Process
newProcess.StartInfo.FileName = "C:\Program Files\VeryPDF PDF Split-Merge v3.0\pdfpg.exe"
newProcess.StartInfo.Arguments = """D:\temp\IN.pdf"" ""D:\temp\f709_2011.pdf"" ""D:\temp\_out.pdf"""
newProcess.StartInfo.UseShellExecute = False
newProcess.StartInfo.CreateNoWindow = True
newProcess.StartInfo.RedirectStandardOutput = True
newProcess.Start()
newProcess.WaitForExit()
MessageBox.Show("Finished.")
End Sub
End Class
please click the big button, the VB.NET application will merge PDF files into one PDF file quickly.
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VeryPDF