Stamps in PDF using C#

Stamping PDF documents with .NET. Use Aspose.PDF to modify PDF documents programmatically

How to add Stamps to PDF using .NET Library

In order to work with text stamp into PDF file, we’ll use Aspose.PDF for .NET API which is a feature-rich, powerful and easy to use document manipulation API for net platform. Open NuGet package manager, search for Aspose.PDF and install. You may also use the following command from the Package Manager Console.

Package Manager Console

PM > Install-Package Aspose.PDF

Add Stamp to PDF Document C#


You need Aspose.PDF for .NET to try the code in your environment.

  1. Load the PDF with an instance of Document.
  2. Get DocumentInfo using Document.Info property.
  3. Access & display different Document.Info properties.

Add Stamp to PDF - C#

var inputFile = Path.Combine(dataDir, "AddTextStamp.pdf");
var outputFile = Path.Combine(dataDir, "AddTextStamp_out.pdf");        
var pdfDocument = new Aspose.Pdf.Document(inputFile);
var textStamp = new Aspose.Pdf.TextStamp("Sample Stamp")
{
    Background = true,
    XIndent = 100,
    YIndent = 100,
    Rotate = Aspose.Pdf.Rotation.on90
};

textStamp.TextState.Font = Aspose.Pdf.Text.FontRepository.FindFont("Arial");
textStamp.TextState.FontSize = 14.0F;
textStamp.TextState.FontStyle = Aspose.Pdf.Text.FontStyles.Bold | Aspose.Pdf.Text.FontStyles.Italic;        
textStamp.TextState.ForegroundColor = Aspose.Pdf.Color.Aqua;        
pdfDocument.Pages[1].AddStamp(textStamp);

pdfDocument.Save(outputFile);