Combine two (or more) PDF's

Question

Background: I need to provide a weekly report package for my sales staff. This package contains several (5-10) crystal reports.

Problem:

Answer 1

To solve a similar problem i used iTextSharp like this:

//Create the document which will contain the combined PDF's
Document document = new Document();

//Create a writer for de document
PdfCopy writer = new PdfCopy(document, new FileStream(OutPutFilePath, FileMode.Create));
if (writer == null)
{
     return;
}

//Open the document
document.Open();

//Get the files you want to combine
string[] filePaths = Directory.GetFiles(DirectoryPathWhereYouHaveYourFiles);
foreach (string filePath in filePaths)
{
     //Read the PDF file
     using (PdfReader reader = new PdfReader(vls_FilePath))
     {
         //Add the file to the combined one
         writer.AddDocument(reader);
     }
}

//Finally close the document and writer
writer.Close();
document.Close();

Answer 2

Following method merges two pdfs( f1 and f2) using iTextSharp. The second pdf is appended after a specific index of f1.

 string f1 = "D:\\a.pdf";
 string f2 = "D:\\Iso.pdf";
 string outfile = "D:\\c.pdf";
 appendPagesFromPdf(f1, f2, outfile, 3);




  public static void appendPagesFromPdf(String f1,string f2, String destinationFile, int startingindex)
        {
            PdfReader p1 = new PdfReader(f1);
            PdfReader p2 = new PdfReader(f2);
            int l1 = p1.NumberOfPages, l2 = p2.NumberOfPages;


            //Create our destination file
            using (FileStream fs = new FileStream(destinationFile, FileMode.Create, FileAccess.Write, FileShare.None))
            {
                Document doc = new Document();

                PdfWriter w = PdfWriter.GetInstance(doc, fs);
                doc.Open();
                for (int page = 1; page <= startingindex; page++)
                {
                    doc.NewPage();
                    w.DirectContent.AddTemplate(w.GetImportedPage(p1, page), 0, 0);
                    //Used to pull individual pages from our source

                }//  copied pages from first pdf till startingIndex
                for (int i = 1; i <= l2;i++)
                {
                    doc.NewPage();
                    w.DirectContent.AddTemplate(w.GetImportedPage(p2, i), 0, 0);
                }// merges second pdf after startingIndex
                for (int i = startingindex+1; i <= l1;i++)
                {
                    doc.NewPage();
                    w.DirectContent.AddTemplate(w.GetImportedPage(p1, i), 0, 0);
                }// continuing from where we left in pdf1 

                doc.Close();
                p1.Close();
                p2.Close();

            }
        }

Answer 3

I've done this with PDFBox. I suppose it works similarly to iTextSharp.

Answer 4

Here is a link to an example using PDFSharp and ConcatenateDocuments

Answer 5

I know a lot of people have recommended PDF Sharp, however it doesn't look like that project has been updated since june of 2008. Further, source isn't available.

Personally, I've been playing with iTextSharp which has been pretty easy to work with.