Text paragraph font size is changed

Hello,

Thanks for the great library for generating PDF! J

I have a question about iTextSharp library: After some data are bound to text fields, the paragraph font size is slightly changed. I don’t know why?

The attached screenshot shows a sample (Left side is PDF template, right side is the generated PDF file). You can see “Sincerely” is not in the same horizontal line. The attached “SampleJS.pdf” is the PDF template.

The main C# web site code is like below:

-----------------------------------------------------------------------------------------------------

protected void BtnGetPDF_Click(object sender, EventArgs e)

{

// Get PDF stream

MemoryStream m = new MemoryStream();

CreatePDFStream(m);

// Get stream bytes

byte[] buffer = m.GetBuffer();

// Save a copy to file for debug purpose only

FileStream fs = new FileStream(Server.MapPath("testPDF.pdf"), FileMode.Create);

fs.Write(buffer, 0, buffer.Length);

fs.Close();

// Write pdf bytes to outputstream

Response.Clear();

Response.ContentType = "application/pdf";

Response.AddHeader("Accept-Header", buffer.Length.ToString());

Response.AddHeader("Content-Length", buffer.Length.ToString());

Response.OutputStream.Write(buffer, 0, buffer.Length);

Response.Flush();

Response.End();

}

/// <summary>

/// Create PDF stream

/// </summary>

private void CreatePDFStream(Stream m)

{

iTextSharp.text.pdf.PdfReader pdfRd = new iTextSharp.text.pdf.PdfReader(Server.MapPath("~/SampleJS.pdf"));

iTextSharp.text.pdf.PdfStamper stamp = new iTextSharp.text.pdf.PdfStamper(pdfRd, m);

// Set form fields

// NOTE: It is supposed to get data from database

iTextSharp.text.pdf.AcroFields fields = stamp.AcroFields;

string formText = fields.GetField("formText");

formText = formText.Replace("«Institution»", txtInstitution.Text);

formText = formText.Replace("«AppID»", txtAppID.Text);

formText = formText.Replace("«CurrentDate»", DateTime.Now.ToString());

formText = formText.Replace("«Name»", "John Nolan");

formText = formText.Replace("«AddressStreet»", "123 test street");

formText = formText.Replace("«AddressCity»", "Frederick");

formText = formText.Replace("«AddressState»", "MD");

formText = formText.Replace("«AddressZip»", "20120");

formText = formText.Replace("«FirstName»", "John");

formText = formText.Replace("«LoanType»", txtLoanType.Text);

formText = formText.Replace("«PartnerURL»", txtPartnerURL.Text);

fields.SetField("formText", formText);

// Get content to make changes

PdfContentByte overContent = stamp.GetOverContent(1);

// Add logo image

iTextSharp.text.Image logo = iTextSharp.text.Image.GetInstance(Server.MapPath("~/logo.jpg"));

float[] logoArea = fields.GetFieldPositions("Logo");

iTextSharp.text.Rectangle logoRect = new Rectangle(logoArea[1], logoArea[2], logoArea[3], logoArea[4]);

// right alignment

logo.ScaleToFit(logoRect.Width, logoRect.Height);

logo.SetAbsolutePosition(logoArea[3] - logo.ScaledWidth + (logoRect.Width - logo.ScaledWidth) / 2,

logoArea[2] + (logoRect.Height - logo.ScaledHeight) / 2);

overContent.AddImage(logo);

// Add Signature

iTextSharp.text.Image signature = iTextSharp.text.Image.GetInstance(Server.MapPath("~/signature.jpg"));

float[] signArea = fields.GetFieldPositions("Signature");

iTextSharp.text.Rectangle signRect = new Rectangle(signArea[1], signArea[2], signArea[3], signArea[4]);

signature.ScaleToFit(signRect.Width, signRect.Height);

signature.SetAbsolutePosition(signArea[1] + (signRect.Width - signature.ScaledWidth) / 2,

signArea[2] + (signRect.Height - signature.ScaledHeight) / 2);

overContent.AddImage(signature);

// Add barcode

Barcode39 code39 = new Barcode39();

code39.Code = txtAppID.Text;

code39.StartStopText = false;

iTextSharp.text.Image image39 = code39.CreateImageWithBarcode(overContent, null, null);

float[] barcodeArea = fields.GetFieldPositions("AppIDBarCode");

iTextSharp.text.Rectangle rect = new Rectangle(barcodeArea[1], barcodeArea[2], barcodeArea[3], barcodeArea[4]);

image39.ScaleToFit(rect.Width, rect.Height);

image39.SetAbsolutePosition(barcodeArea[1] + (rect.Width - image39.ScaledWidth) / 2,

barcodeArea[2] + (rect.Height - image39.ScaledHeight) / 2);

overContent.AddImage(image39);

stamp.FormFlattening = false;

stamp.FreeTextFlattening = true;

stamp.Close();

}

-----------------------------------------------------------------------------------------------------

If you could figure out where the problem is, that would be greatly appreciated.

Jun Meng

By Date:	<-- -->
By Thread:	<-- -->