.NET PDF tagging SDK

using GdPicturePDF gdpicturePDF = new GdPicturePDF();
// Set the measurement unit and the origin.
gdpicturePDF.SetMeasurementUnit(PdfMeasurementUnit.PdfMeasurementUnitMillimeter);
gdpicturePDF.SetOrigin(PdfOrigin.PdfOriginTopLeft);
// Create a new PDF document.
gdpicturePDF.NewPDF();
// Add a new A4-sized page to the document.
gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4);
// Set the font and the font size to be used in the PDF document.
string fontResourceName = gdpicturePDF.AddTrueTypeFontU("Arial", false, false, true);
gdpicturePDF.SetTextSize(18);
// Load the image to be used in the PDF document.
string logo = gdpicturePDF.AddJpegImageFromFile("C:\temp\logo.jpg");
// Set the title.
gdpicturePDF.SetTitle("Company Logo");
// Set the language.
gdpicturePDF.SetLanguage("en-US");
// Determine the ID of the root tag.
int tagRootId = gdpicturePDF.GetTagRootID();
// Create a section tag for the document content.
int tagSection = gdpicturePDF.NewTag(tagRootId, "Sect");
// Add text to the section.
gdpicturePDF.BeginMarkedContentSequence(tagSection, "Span");
gdpicturePDF.DrawText(fontResourceName, 20, 60, "The company logo is");
gdpicturePDF.EndMarkedContent();
// Create a figure tag within the section and set its properties.
int tagLogo = gdpicturePDF.NewTag(tagSection, "Figure");
gdpicturePDF.SetTagAlternateDescription(tagLogo, "This is the company logo.");
// Add the image to the figure tag.
gdpicturePDF.BeginMarkedContentSequence(tagLogo, "Figure");
gdpicturePDF.DrawImage(logo, 80, 80, 40, 40);
gdpicturePDF.EndMarkedContent();
// Save the output in a PDF document.
gdpicturePDF.SaveToFile(@"C:\temp\output.pdf");

Using gdpicturePDF As GdPicturePDF = New GdPicturePDF()
    ' Set the measurement unit and the origin.
    gdpicturePDF.SetMeasurementUnit(PdfMeasurementUnit.PdfMeasurementUnitMillimeter)
    gdpicturePDF.SetOrigin(PdfOrigin.PdfOriginTopLeft)
    ' Create a new PDF document.
    gdpicturePDF.NewPDF()
    ' Add a new A4-sized page to the document.
    gdpicturePDF.NewPage(PdfPageSizes.PdfPageSizeA4)
    ' Set the font and the font size to be used in the PDF document.
    Dim fontResourceName As String = gdpicturePDF.AddTrueTypeFontU("Arial", False, False, True)
    gdpicturePDF.SetTextSize(18)
    ' Load the image to be used in the PDF document.
    Dim logo As String = gdpicturePDF.AddJpegImageFromFile("C:\temp\logo.jpg")
    ' Set the title.
    gdpicturePDF.SetTitle("Company Logo")
    ' Set the language.
    gdpicturePDF.SetLanguage("en-US")
    ' Determine the ID of the root tag.
    Dim tagRootId As Integer = gdpicturePDF.GetTagRootID()
    ' Create a section tag for the document content.
    Dim tagSection As Integer = gdpicturePDF.NewTag(tagRootId, "Sect")
    ' Add text to the section.
    gdpicturePDF.BeginMarkedContentSequence(tagSection, "Span")
    gdpicturePDF.DrawText(fontResourceName, 20, 60, "The company logo is")
    gdpicturePDF.EndMarkedContent()
    ' Create a figure tag within the section and set its properties.
    Dim tagLogo As Integer = gdpicturePDF.NewTag(tagSection, "Figure")
    gdpicturePDF.SetTagAlternateDescription(tagLogo, "This is the company logo.")
    ' Add the image to the figure tag.
    gdpicturePDF.BeginMarkedContentSequence(tagLogo, "Figure")
    gdpicturePDF.DrawImage(logo, 80, 80, 40, 40)
    gdpicturePDF.EndMarkedContent()
    ' Save the output in a PDF document.
    gdpicturePDF.SaveToFile("C:\temp\output.pdf")
End Using