HOW TO: Convert a PDF Annotation to a LEAD Annotation

List<AnnContainer> Containers = new List<AnnContainer>();

RasterImage image = null;

PDFDocument pdfDoc = new PDFDocument(pdfFilename);

// Parses the objects such as text items (characters), images, rectangles, annotations, form fields, 
//digital signatures, hyperlinks and fonts from one or more PDF pages
pdfDoc.ParsePages(PDFParsePagesOptions.Annotations, 1, -1);

foreach (var page in pdfDoc.Pages)
{
    AnnContainer newContainer = new AnnContainer();

    using (RasterImage pageImage = codecs.Load(pdfFilename, pdfDoc.Pages.IndexOf(page) + 1))
    {
        if (image == null)
            image = pageImage.Clone();
        else
            image.AddPage(pageImage.Clone());

        //Update this mapper with the specified DPI values.
        newContainer.Mapper.MapResolutions(image.XResolution, image.YResolution, image.XResolution, image.YResolution);

        //Set size of container by converting the image size coordinates to annotation coordinates
        newContainer.Size = newContainer.Mapper.SizeToContainerCoordinates(image.ImageSize.ToLeadSizeD());

        AnnPDFConvertor.ConvertFromPDF(page.Annotations, newContainer, LeadSizeD.Create(page.Width, page.Height));
        
       Containers.Add(newContainer)
    }
}