iTextSharp - Add TIFF image to a PDF

Question

I am using Magick.NET-Q16-Anycpu version 7.12.0 and iTextSharp libraries.

First I open the image with Magick and save this TIFF page in a folder. Then I use this image to add it to the PDF.

I’ve been making changes to the code and it stopped working. And I’ve tried to use a code that I knew was correct and yet it gives me this error:

System.Argumentexception: Extra samples are not supported.

at iTextSharp.text.pdf.codec.Tiffimage.Gettiffimagecolor(Tiffdirectory dir, Randomaccessfileorarray s) at iTextSharp.text.pdf.codec.Tiffimage.Gettiffimage(Randomaccessfileorarray s, Int32 page, Boolean direct) at iTextSharp.text.Image.Getinstance(Uri url) at iTextSharp.text.Image.Getinstance(String filename) At projectofct.Form1.Convpdferror3(String dest, String[] e) in C: Users user Documents Projeto Projetoa Form1.Cs:line 5253

Code

        public void ConvTiffToPdf(string dest, string[] e)
        {
            for (int i = 0; i < e.Length; i++)
            {
                int pages = 0;
                string output = dest + "\\" + Path.GetFileNameWithoutExtension(e[i]) + ".pdf";
                iTextSharp.text.Document document = new iTextSharp.text.Document();
                iTextSharp.text.pdf.PdfWriter writer = iTextSharp.text.pdf.PdfWriter.GetInstance(document, new FileStream(output, FileMode.Create));
                writer.CompressionLevel = PdfStream.BEST_COMPRESSION;
                writer.PdfVersion = PdfWriter.VERSION_1_7;

                string folder = AppDomain.CurrentDomain.BaseDirectory + "temporario\\" + Path.GetFileNameWithoutExtension(e[i]);
                if (!Directory.Exists(folder)) Directory.CreateDirectory(folder);

                bool @continue = true;
                while (@continue == true)
                {
                    MagickReadSettings settings = new MagickReadSettings
                    {
                        Compression = ImageMagick.CompressionMethod.LZW,
                        Format = MagickFormat.Tiff,
                        FrameIndex = pages
                    };
                    try
                    {
                        using (MagickImage image = new MagickImage(e[i], settings))
                        {
                            string file = folder + "\\" + Path.GetFileNameWithoutExtension(e[i]) + "- Página " + (pages + 1) + ".tif";
                            image.Quality = 75;
                            image.Format = MagickFormat.Tiff;
                            image.Write(file, MagickFormat.Tiff);

                            iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(file); //o erro é aqui
                            iTextSharp.text.Rectangle size = new iTextSharp.text.Rectangle(img.ScaledWidth, img.ScaledHeight);
                            document.SetPageSize(size);
                            document.SetMargins(0, 0, 0, 0);
                            document.Open();
                            iTextSharp.text.pdf.PdfContentByte cb = writer.DirectContent;
                            img.SetAbsolutePosition(0, 0);
                            img.SetDpi(300, 300);
                            cb.AddImage(img);
                            document.NewPage();
                        }
                    }
                    catch (Exception ex)
                    {
                        if (ex is MagickException)
                        {
                            document.Close();
                            Invoke(new Action(() => { succed = 1; pbar.PerformStep(); caseSwitch = 6; }));
                            @continue = false;
                        }
                        else if(ex is System.ObjectDisposedException)
                        {
                            document.Close();
                            Invoke(new Action(() => { succed = 1; pbar.PerformStep(); caseSwitch = 6; }));
                            @continue = false;
                        }
                        else if(ex is System.ArgumentException)
                        {
                            MessageBox.Show(ex.ToString(), "Erro", MessageBoxButtons.OK);
                        }
                        else
                            MessageBox.Show(ex.ToString(), "Erro", MessageBoxButtons.OK);
                    }
                    pages++;
                }
            }
        }

Can someone help me figure out what’s wrong with my code? Thanks in advance.

Answer 1

I tried using Pdfsharp and Itextsharp.

For simple things you need to write a lot of code and it should be encapsulated making your life easier.

I suggest using the library Ironpdf that has good documentation and much easier to use