I was asked to make a C# class from which I could transform a text file into a pdf file. Thanks to many suggestions found on Reddit, I was able to find a Dll that is capable to do the job with minimum coding and very nice set of functionnalities. However I wasn't able to test its performance in Batch creating millions of pdf files.

The name of the dll I chose is iTextSharp and can be found there

Problems found

Unfortunately if the library seems great, the documentation seems rather absent and I had to google a lot to reach some result.

Here is the Code I used to transform the content of multi-lines textboxes in a multi-page pdf file, adding a signature at the end when finding in the text a sequence of caracters

After having included the Dll as reference in the project.

string fileNameOut = @"TextFile.pdf";
string filePathOut = Path.Combine(Application.StartupPath,fileNameOut);

string retorno = string.Empty;
string strRead = "";

//Create the instance of the document object.
Document documento = new Document(PageSize.A4, 50, 50, 64, 64);

try
{
	//Creation of the document
	iTextSharp.text.pdf.PdfWriter.GetInstance(documento, new FileStream(filePathOut, FileMode.Create));
	//Open an instance of the object
	documento.Open();
	
	int i = 0;
	
	foreach (TabPage tp in this.tabControl1.TabPages)
	{
		int j = i +1;
		TextBox txt = (TextBox)this.tabControl1.TabPages[i].Controls["txtPaginax"+j.ToString()];

//Adding each textbox content to a new paragraph
		Paragraph paragrafo = new Paragraph();

//Font and formatting
		paragrafo.Alignment = Element.ALIGN_JUSTIFIED;
		BaseFont bfCourrier = BaseFont.CreateFont(BaseFont.COURIER, BaseFont.CP1252, false);
		iTextSharp.text.Font courrier = new iTextSharp.text.Font(bfCourrier, 10, iTextSharp.text.Font.NORMAL, iTextSharp.text.BaseColor.BLACK);
		paragrafo.Font = courrier;
		
		paragrafo.SetLeading(0.0f, 1.2f);
		
		bool assinaturaok = false;
		iTextSharp.text.Image assinatura = null;
		
		string [] arrTxt = txt.Text.Split(new string[] { Environment.NewLine}, StringSplitOptions.None);
		foreach (string strElt in arrTxt)
		{
			Phrase a = new Phrase();
			
			if (strElt.Trim() == "ABC")
			{
				assinatura = iTextSharp.text.Image.GetInstance(Path.Combine(Application.StartupPath, "assinatura.GIF"));
				assinatura.Alignment =  iTextSharp.text.Image.TEXTWRAP | Element.ALIGN_CENTER;
				assinaturaok = true;
			}
			else
				a.Add(strElt + Environment.NewLine);
			
			paragrafo.Add(a);
		}
	
		documento.Add(paragrafo);
		if (assinaturaok)
			documento.Add(assinatura);
		
		if (i < tabControl1.TabPages.Count)
			documento.NewPage();

retorno = "Arquivo gerado com sucesso!";
		i++;

}
	//Close document
	documento.Close();

}
catch (DocumentException de)
{
	retorno = de.Message;
}
catch(IOException ioe)
{
	retorno = ioe.Message;
}
catch(Exception er)
{
	retorno = er.Message;
}

MessageBox.Show(retorno);
System.Diagnostics.Process.Start(Path.Combine(Application.StartupPath, "TextFile.pdf"));

History

2010-09-07: Help request! help me finish this article (and complete my software).

2010-09-09: Solving the problem using iTextSharp.

Last Updated on

About David Domingues: David Domingues is a professional IT analyst. Visit http://www.webrickco.com.

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Introduction

Problems found

Here is the Code I used to transform the content of multi-lines textboxes in a multi-page pdf file, adding a signature at the end when finding in the text a sequence of caracters

History

Read our last 5 articles

Submit your article now