Outputted pdf not filling with the content in iTextsharp.

Question

Hi,

 

I am working to replace the specific word inside pdf document using iTextSharp and C#.net, while I am debugging getting the proper value but the outputted pdf getting zero bytes(empty),its not filling with the content. Here is my code:

 

ReplacePDFText("Mumbai",StringComparison.CurrentCultureIgnoreCase,Application.StartupPath + "\\test.pdf","D:\\test_words_replaced.pdf"); //Do Everything

public void ReplacePDFText(string strSearch, StringComparison scCase, string strSource, string strDest)

{

PdfStamper psStamp = null; //PDF Stamper Object

PdfContentByte pcbContent = null; //Read PDF Content

if (File.Exists(strSource)) //Check If File Exists

{

PdfReader pdfFileReader = new PdfReader(strSource); //Read Our File

psStamp = new PdfStamper(pdfFileReader, new FileStream(strDest, FileMode.Create)); //Read Underlying Content of PDF File

pbProgress.Value = 0; //Set Progressbar Minimum Value

pbProgress.Maximum = pdfFileReader.NumberOfPages; //Set Progressbar Maximum Value

for (int intCurrPage = 1; intCurrPage <= pdfFileReader.NumberOfPages; intCurrPage++) //Loop Through All Pages

{

LocTextExtractionStrategy lteStrategy = new LocTextExtractionStrategy(); //Read PDF File Content Blocks

pcbContent = psStamp.GetUnderContent(intCurrPage); //Look At Current Block

//Determine Spacing of Block To See If It Matches Our Search String

lteStrategy.UndercontentCharacterSpacing = pcbContent.CharacterSpacing;

lteStrategy.UndercontentHorizontalScaling = pcbContent.HorizontalScaling;

//Trigger The Block Reading Process

string currentText = PdfTextExtractor.GetTextFromPage(pdfFileReader, intCurrPage, lteStrategy);

//Determine Match(es)

List<iTextSharp.text.Rectangle> lstMatches = lteStrategy.GetTextLocations(strSearch, scCase);

PdfLayer pdLayer = default(PdfLayer); //Create New Layer

pdLayer = new PdfLayer("Overrite", psStamp.Writer); //Enable Overwriting Capabilities

//Set Fill Colour Of Replacing Layer

pcbContent.SetColorFill(BaseColor.BLACK);

foreach (iTextSharp.text.Rectangle rctRect in lstMatches) //Loop Through Each Match

{

pcbContent.Rectangle(rctRect.Left, rctRect.Bottom, rctRect.Width, rctRect.Height); //Create New Rectangle For Replacing Layer

pcbContent.Fill(); //Fill With Colour Specified

pcbContent.BeginLayer(pdLayer); //Create Layer

pcbContent.SetColorFill(BaseColor.BLACK); //Fill aLyer

pcbContent.Fill(); //Fill Underlying Content

PdfGState pgState = default(PdfGState); //Create GState Object

pgState = new PdfGState();

pcbContent.SetGState(pgState); //Set Current State

pcbContent.SetColorFill(BaseColor.WHITE); //Fill Letters

pcbContent.BeginText(); //Start Text Replace Procedure

pcbContent.SetTextMatrix(rctRect.Left, rctRect.Bottom); //Get Text Location

//Set New Font And Size

pcbContent.SetFontAndSize(BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED), 9);

pcbContent.ShowText("AMAZING!!!!"); //Replacing Text

pcbContent.EndText(); //Stop Text Replace Procedure

pcbContent.EndLayer(); //Stop Layer replace rocedure

}

pbProgress.Value++; //Increase Progressbar Value

pdfFileReader.Close(); //Close File

}

//psStamp.Close(); //Close Stamp Object

}

}