1:           PdfDocumentOptions pdfDocumentOptions = new PdfDocumentOptions();

2:  

3:           pdfDocumentOptions.PdfCompressionLevel = PDFCompressionLevel.Normal;

4:           pdfDocumentOptions.PdfPageSize =  PdfPageSize.A4;

5:           pdfDocumentOptions.PdfPageOrientation = PDFPageOrientation.Portrait;

6:  

7:           PDFMerge pdfMerge = new PDFMerge(pdfDocumentOptions);

8:  

9:           pdfMerge.AppendPDFFile(pdfFilePath);

10:          pdfMerge.AppendImageFile(imageFilePath);

11:          pdfMerge.AppendTextFile(textFilePath);

12:          pdfMerge.AppendEmptyPage();

13:          

14:  

15:          pdfMerge.SaveMergedPDFToFile(outFile);