Pdf Merge


Pdf Merge

Select.Pdf can be used to merge several existing pdf documents into a single pdf document.

To achive this task, individual pdf files need to be loaded into PdfDocument objects. The following sample code shows how to load an existing file from the disk:

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// load pdf file from disk
PdfDocument doc = new PdfDocument(fileName);

' load pdf file from disk
Dim doc As New PdfDocument(fileName)

Another important method that will be used by the pdf merge feature is Append(PdfDocument) of the PdfDocument object. Using this method, a pdf document can be appended to another pdf document:

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// append doc1 to doc2
doc2.Append(doc1);

' append doc1 to doc2
doc2.Append(doc1)

Sample Code

This sample code shows how to use SelectPdf Library for .NET to merge 2 different pdf documents into a new pdf document.

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// the 2 initial files
string file1 = Server.MapPath("~/files/doc1.pdf");
string file2 = Server.MapPath("~/files/doc2.pdf");

// load the 2 pdf documents
PdfDocument doc1 = new PdfDocument(file1);
PdfDocument doc2 = new PdfDocument(file2);

// create a new pdf document
PdfDocument doc = new PdfDocument();

// add the pages of those 2 documents to the new document
doc.Append(doc1);
doc.Append(doc2);

// save pdf document
doc.Save(Response, false, "Sample.pdf");

// close pdf document
doc.Close();

// close the original pdf documents
doc1.Close();
doc2.Close();

' the 2 initial files
Dim file1 As String = Server.MapPath("~/files/doc1.pdf")
Dim file2 As String = Server.MapPath("~/files/doc2.pdf")

' load the 2 pdf documents
Dim doc1 As New PdfDocument(file1)
Dim doc2 As New PdfDocument(file2)

' create a new pdf document
Dim doc As New PdfDocument()

' add the pages of those 2 documents to the new document
doc.Append(doc1)
doc.Append(doc2)

' save pdf document
doc.Save(Response, False, "Sample.pdf")

' close pdf document
doc.Close()

' close the original pdf documents
doc1.Close()
doc2.Close()

Reference

PdfDocument