Convert PDF Annotations to LEADTOOLS Annotations - WinForms C# .NET 6

using Leadtools; 
using Leadtools.Controls; 
using Leadtools.Codecs; 
using Leadtools.Annotations.Automation; 
using Leadtools.Annotations.WinForms; 
using Leadtools.Pdf; 
using Leadtools.Pdf.Annotations; 

private void Form1_Load(object sender, EventArgs e) 
{ 
   // Initialize Image Viewer object  
   _viewer = new(); 
   _viewer.Dock = DockStyle.Fill; 
 
   // Initialize Automation Control for Image Viewer  
   _automationControl = new(); 
   _automationControl.ImageViewer = _viewer; 
 
   // Initialize a new RasterCodecs object   
   RasterCodecs codecs = new(); 
   codecs.Options.Pdf.Load.HideAnnotations = true; 
 
   // Change file reference to PDF with annotations 
   string pdfFilename = @"C:\DevopsMaps\v23\tutorials\Dotnet-WinForms-Convert-PDF-Annotations-to-LEADTOOLS-Annotations\Annotated.pdf"; 
 
   // Load the main image into the viewer 
   //Comment out if handling files with MemoryStream 
   _viewer.Image = codecs.Load(pdfFilename); 
 
   //Uncomment if handling files with MemoryStream 
   //byte[] pdfData = File.ReadAllBytes(pdfFilename); 
   //MemoryStream pdfStream = new MemoryStream(pdfData); 
   //viewer.Image = codecs.Load(pdfStream); 
 
   // Initialize the Interactive Mode for the Image Viewer   
   AutomationInteractiveMode automationInteractiveMode = new(); 
   automationInteractiveMode.AutomationControl = _automationControl; 
 
   // Add the Interactive Mode to the Image Viewer   
   _viewer.InteractiveModes.BeginUpdate(); 
   _viewer.InteractiveModes.Add(automationInteractiveMode); 
   _viewer.InteractiveModes.EndUpdate(); 
 
   if (_viewer.Image != null) 
   { 
         // Create and set up the Automation Manager   
         _annAutomationManager = new(); 
         _annAutomationManager.RestrictDesigners = true; 
 
         // Instruct the Manager to create all the default Automation objects.   
         _annAutomationManager.CreateDefaultObjects(); 
 
         // Initialize the Manager Helper and create the Toolbar  
         // Add the Toolbar and the Image Viewer to the Controls   
         AutomationManagerHelper managerHelper = new(_annAutomationManager); 
         managerHelper.CreateToolBar(); 
         Controls.Add(managerHelper.ToolBar); 
         Controls.Add(_viewer); 
 
         // Set up the Automation (it will create the Container as well)   
         _automation = new(_annAutomationManager, _automationControl); 
         // Set this Automation as the active one   
         _automation.Active = true; 
 
         // Set the size of the Container to the size of the Image Viewer   
         _automation.Container.Size = _automation.Container.Mapper.SizeToContainerCoordinates(LeadSizeD.Create(_viewer.Image.ImageWidth, _viewer.Image.ImageHeight)); 
 
         // Parse PDF annotations 
         PDFDocument pdfDoc = new(pdfFilename); 
 
         //Use if handling files with MemoryStream 
         //PDFDocument pdfDoc = new PDFDocument(pdfStream); 
 
         pdfDoc.ParsePages(PDFParsePagesOptions.Annotations, 1, -1); 
         // Make sure mapping resolution is correct  
         _automation.Container.Mapper.MapResolutions(_viewer.Image.XResolution, _viewer.Image.YResolution, _viewer.Image.XResolution, _viewer.Image.YResolution); 
         // Convert annotations  
         AnnPDFConvertor.ConvertFromPDF(pdfDoc.Pages[0].Annotations, _automation.Container, LeadSizeD.Create(pdfDoc.Pages[0].Width, pdfDoc.Pages[0].Height)); 
   } 
} 

byte[] pdfData = File.ReadAllBytes(pdfFilename); 
MemoryStream pdfStream = new MemoryStream(pdfData); 
viewer.Image = codecs.Load(pdfStream); 

PDFDocument pdfDoc = new PDFDocument(pdfStream);