Question

In my silverlight I have the need to modify PDF files. I usually use Itext libraries for this kind of thing but I am seeing that I cannot reference .NET libraries in Silverlight. Is there any workaround to get the iText functions I need in Silverlight?

Answer 1

Your question is a duplicate of this one, how can I use non-silverlight assemblies in silverlight.

As a work around I would suggest the following for using your itext library. Create a service to do your PDF file modification and then use it via WCF. First upload the PDF file to the server from the Silverlight application. Then call a method on the service using the uploaded path.

public void EditPdf(string pdfLocation)
{
    var document = new Document();
    PdfWriter.GetInstance(document, new FileStream(pdfLocation,FileMode.CreateNew));
    document.Open();
    document.Add(new Paragraph("Hello World"));
    document.Close();

}

Then retrieve the PDF for the user via the Silverlight client.