Merging Documents

• Nov 13, 2018

The PDF Document Processor can merge multiple PDF documents into a single PDF file.

This task can be achieved by creating a target document at the beginning of the merging process, and adding source documents to the target document one-by-one.

Note

The source documents are added to the end of a target document.

The PDF Document Processor keeps original document content while merging documents.

To create a target document with no pages, create an instance of the PdfDocumentProcessor object and call one of the PdfDocumentProcessor.CreateEmptyDocument overloaded methods (e.g., using a file path).

To add a source document to the target document, call one of the PdfDocumentProcessor.AppendDocument overloaded methods.

Example

This example illustrates how to use PDF Document Processor for merging pages of two separate PDF files into a single PDF file.

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-merge-documents-into-a-single-pdf-t114298

Program.vb

Imports DevExpress.Pdf

Namespace PdfMergeExample

    Friend Class Program
        Shared Sub Main(ByVal args() As String)

            Using pdfDocumentProcessor As New PdfDocumentProcessor()
                pdfDocumentProcessor.CreateEmptyDocument("..\..\docs\Merged.pdf")
                pdfDocumentProcessor.AppendDocument("..\..\docs\TextMerge1.pdf")
                pdfDocumentProcessor.AppendDocument("..\..\docs\TextMerge2.pdf")
            End Using
        End Sub
    End Class
End Namespace

Program.cs

using DevExpress.Pdf;

namespace PdfMergeExample {

    class Program {
        static void Main(string[] args) {

            using (PdfDocumentProcessor pdfDocumentProcessor = new PdfDocumentProcessor()) {
                pdfDocumentProcessor.CreateEmptyDocument("..\\..\\docs\\Merged.pdf");
                pdfDocumentProcessor.AppendDocument("..\\..\\docs\\TextMerge1.pdf");
                pdfDocumentProcessor.AppendDocument("..\\..\\docs\\TextMerge2.pdf");             
            }
        }
    }
}