I am facing a problem adding text to an existing an Acrobat 9 PDF file. The
text is added but is not visible. Here is the code snippet.
try
{
strFileName = System.AppDomain.CurrentDomain.BaseDirectory+
@"\updatefolder\" + strFileName;
PdfReader reader = new PdfReader(strFileName);
//
// PDFStamper is the class we use from iTextSharp to alter an existing PDF.
//
string _tempFile = AppDomain.CurrentDomain.BaseDirectory + "temp.pdf";
if (File.Exists(_tempFile))
{
File.Delete(_tempFile);
}
PdfStamper pdfStamper = new PdfStamper(reader,new
FileStream(_tempFile,FileMode.CreateNew,FileAccess.Write));
iTextSharp.text.Rectangle pageSize = reader.GetPageSizeWithRotation(1);
//
// Gets the content ABOVE the PDF, Another option is GetUnderContent(...)
// which will place the text below the PDF content.
//
PdfContentByte pdfPageContents = pdfStamper.GetUnderContent(1);
pdfPageContents.BeginText(); // Start working with text.
//
// Create a font to work with
//
BaseFont baseFont = BaseFont.CreateFont(BaseFont.HELVETICA_BOLD,
Encoding.ASCII.EncodingName, false);
pdfPageContents.SetFontAndSize(baseFont, ; // 40 point font
// pdfPageContents.SetRGBColorFill(0,0,0); // Sets the color of the font,
RED in this instance
pdfPageContents.SetColorFill(iTextSharp.text.Color.BLUE); // Sets the color
of the font, RED in this instance
pdfPageContents.ShowTextAligned(PdfContentByte.ALIGN_CENTER, _signatureText,
pageSize.Width-200,
pageSize.Height-50,
0);
pdfPageContents.EndText(); // Done working with text
pdfStamper.FormFlattening = false; // enable this if you want the PDF
flattened.
reader.Close();
pdfStamper.Close(); // Always close the stamper or you'll have a 0 byte
stream.
File.Delete(strFileName);
File.Move(_tempFile,strFileName);
}
catch(Exception ex)
{
utils.WriteToLog("Failed to add signature to " + strFileName +" :: " +
ex.Message.ToString(),ex.Message,"");
}
As there is not option to upload an attachment, I cant show the output pdf
file. The code works fine with Acrobat 7 pdf files.
It would be really helpful if anyone can help me with this problem.
Thanks...
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