Writing to Existing PDF Templates using itextSharp.

Recently I was in need of writing to existing Pdf files. I thought of using itextsharp library in order to do the Pdf files manipulations.

A useful file can be downloaded from http://www.manning.com/lowagie2/samplechapter6.pdf

And http://itextpdf.com/api

PdfReader  - Reading the existing Pdf document

PdfStamper - Starts the process of adding extra content to an existing PDF document keeping the 

document PDF/A conformant. 

PdfContentByte - PdfContentByte is an object containing the user positioned text and graphic 

contents of a page. It knows how to apply the proper font encoding.

Below is Example Code:

private void WriteToPdfFile(string sourceFile, string destinatationFile)

{

// Reading the source file template supplied

PdfReader reader = new PdfReader(sourceFile);

//Create the destication file supplied

PdfStamper stamper = new PdfStamper(reader, new 

FileStream(destinatationFile, FileMode.Create));

// Get the Page1 and Page2 Content -  Graphical state of the page

PdfContentByte page1 = stamper.GetOverContent(1); 

PdfContentByte page2 = stamper.GetOverContent(2); 

// Declare the Font Size

Font courier10 = new Font(Font.FontFamily.COURIER, 10f);

Font Cambria12 = FontFactory.GetFont("Cambria", 12f);

int xPosition = 30;

int yPosition = 720;

// Writing the content to specific position

ColumnText.ShowTextAligned(page1, Element.ALIGN_LEFT, 

new Phrase("Hello iTextSharp", courier10), xPosition, yPosition, 0);

// setting the file compression to file size is reduced

stamper.SetFullCompression();

stamper.Close();

reader.Close();

}

// Please return to me in case you find any problem.