Please directly use the following code to achieve
PDF merging :
using RasterEdge.Imaging.Basic;
using RasterEdge.Imaging.Basic.Core;
using RasterEdge.Imaging.Basic.Codec;
using RasterEdge.Imaging.PDF;
namespace RE__Test
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public static string FolderName = "c:/";
private void button1_Click(object sender, EventArgs e)
{
string fileName1 = FolderName + "Sample1.pdf";
string fileName2 = FolderName + "Sample2.pdf";
string fileNameMerged = FolderName + "Merged.pdf";
REDocument doc1 = REFile.OpenDocumentFile(fileName1, new PDFDecoder());//use PDFDecoder open one pdf file
REDocument doc2 = REFile.OpenDocumentFile(fileName2, new PDFDecoder());//use PDFDecoder open another pdf file
BaseDocument docMerged = doc1.MergeDocument(doc2);//merge two pdf
REFile.SaveDocumentFile((REDocument)docMerged, fileNameMerged, new PDFEncoder());//save new pdf
}