C#•2y ago

❔ Merging the First Page of PDFs Using IText7 and C#

Hello,
i have written a function to merge the first page of one PDF into another using iTextSharp, and I have used the following code:

public bool MergePagePdf(string outputFile, byte[] inputFile2, byte[] inputFile1, out string strErrore)
{
    bool bRet = false;
    int positionx = 0;
    int positiony = 0;
    strErrore = "";

    try
    {
        iTextSharp.text.Document document = new iTextSharp.text.Document();
        PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(outputFile, FileMode.Create));

        document.Open();
        PdfContentByte cb = writer.DirectContent;
        PdfImportedPage page1;
        PdfImportedPage page2;

        PdfReader reader1 = new PdfReader(inputFile1);
        PdfReader reader2 = new PdfReader(inputFile2);

        document.SetPageSize(reader1.GetPageSizeWithRotation(1));
        document.NewPage();

        page1 = writer.GetImportedPage(reader1, 1);
        page2 = writer.GetImportedPage(reader2, 1);

        cb.AddTemplate(page1, 0, 0);
        cb.AddTemplate(page2, positionx, positiony);

        if (reader1.NumberOfPages > 1)
        {
            for (int i = 2; i <= reader1.NumberOfPages; i++)
            {
                document.SetPageSize(reader1.GetPageSizeWithRotation(i));
                document.NewPage();
                page1 = writer.GetImportedPage(reader1, i);
                cb.AddTemplate(page1, 0, 0);
            }
        }

        bRet = true;
    }
    catch (Exception e)
    {
        strErrore = e.Message;
        bRet = false;
    }

    return bRet;
}

public bool MergePagePdf(string outputFile, byte[] inputFile2, byte[] inputFile1, out string strErrore)
{
    bool bRet = false;
    int positionx = 0;
    int positiony = 0;
    strErrore = "";

    try
    {
        iTextSharp.text.Document document = new iTextSharp.text.Document();
        PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(outputFile, FileMode.Create));

        document.Open();
        PdfContentByte cb = writer.DirectContent;
        PdfImportedPage page1;
        PdfImportedPage page2;

        PdfReader reader1 = new PdfReader(inputFile1);
        PdfReader reader2 = new PdfReader(inputFile2);

        document.SetPageSize(reader1.GetPageSizeWithRotation(1));
        document.NewPage();

        page1 = writer.GetImportedPage(reader1, 1);
        page2 = writer.GetImportedPage(reader2, 1);

        cb.AddTemplate(page1, 0, 0);
        cb.AddTemplate(page2, positionx, positiony);

        if (reader1.NumberOfPages > 1)
        {
            for (int i = 2; i <= reader1.NumberOfPages; i++)
            {
                document.SetPageSize(reader1.GetPageSizeWithRotation(i));
                document.NewPage();
                page1 = writer.GetImportedPage(reader1, i);
                cb.AddTemplate(page1, 0, 0);
            }
        }

        bRet = true;
    }
    catch (Exception e)
    {
        strErrore = e.Message;
        bRet = false;
    }

    return bRet;
}

I am trying to achieve the same result with the new version of IText7, but I haven't been successful. Is it possible to do it with the new version? If yes, can someone guide me on how to accomplish it? Thank you for your help.

3 Replies

ero•2y ago

What exactly isn't working?

antann78#001OP•2y ago

The function for itextsharp works fine but it doesn't work for the IText7 library. I couldn't find the commands in IText7 to do a page merge. You can help me?

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Merging the First Page of PDFs Using IText7 and C#