Crea e modifica file XPS

    using Aspose.Page.XPS;
    using Aspose.Page.XPS.XpsModel;
    using System.Drawing;

    // The path to the documents directory.
    string dir = RunExamples.GetDataDir_WorkingWithDocument();
    // Create a new XPS Document
    XpsDocument xDocs = new XpsDocument();

    // Add the glyph to the document
    var glyphs = xDocs.AddGlyphs("Arial", 12, FontStyle.Regular, 300f, 450f, "Hello World!");

    glyphs.Fill = xDocs.CreateSolidColorBrush(Color.Black);

    // Save the result
    xDocs.Save(dir + "output.xps");

    // The path to the documents directory.
    string dir = RunExamples.GetDataDir_WorkingWithDocument();
    // Open a stream of XPS file
    using (FileStream xpsStream = File.Open(dir + "input1.xps", FileMode.Open, FileAccess.Read))
    {
        // Create an XPS document from stream
        XpsDocument document = new XpsDocument(xpsStream, new XpsLoadOptions());

        // Create the fill of the signature text
        XpsSolidColorBrush textFill = document.CreateSolidColorBrush(Color.BlueViolet);

        // Define pages where the signature will be set
        int[] pageNumbers = new int[] {1, 2, 3};

        // For every defined page set signature "Confirmed" at coordinates x=650 and y=950
        for (int i = 0; i < pageNumbers.Length; i++)
        {
            // Define an active page
            document.SelectActivePage(pageNumbers[i]);

            // Create a glyphs object
            XpsGlyphs glyphs = document.AddGlyphs("Arial", 24, FontStyle.Bold, 650, 900, "Confirmed");

            // Define the fill for glyphs
            glyphs.Fill = textFill;
        }

        // Save the changed XPS document
        document.Save(dir + "input1_out.xps");
    }