kmpdfkit_demo/Demo/Examples/Samples/AnnotationImportExportTest/AnnotationImportExportTest.cs

using ComPDFKit.PDFDocument;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AnnotationImportExportTest
{
    internal class AnnotationImportExportTest
    {
        private static string outputPath = Path.GetDirectoryName(Path.GetDirectoryName(Path.GetDirectoryName(System.IO.Directory.GetCurrentDirectory()))) + "\\Output\\AnnotationImportExportTest";
        private static string tempPath = outputPath + "//temp";

        static void Main(string[] args)
        {
            Console.WriteLine("Running header and footer test sample…\r\n");
            SDKLicenseHelper.LicenseVerify();


            if (!Directory.Exists(outputPath))
            {
                Directory.CreateDirectory(outputPath);
            }
            if (!Directory.Exists(tempPath))
            {
                Directory.CreateDirectory(tempPath);
            }

            CPDFDocument annotationsDocument = CPDFDocument.InitWithFilePath("Annotations.pdf"); 
            if (ExportAnnotaiton(annotationsDocument))
            {
                Console.WriteLine("Export annotaiton done.");
            }
            else
            {
                Console.WriteLine("Export annotaiton failed.");
            } 
            Console.WriteLine("--------------------");

            CPDFDocument document = CPDFDocument.InitWithFilePath("CommonFivePage.pdf");

            if (ImportAnnotaiton(document))
            {
                Console.WriteLine("Import annotaiton done.");
            }
            else
            {
                Console.WriteLine("Import annotaiton failed.");
            }
            Console.WriteLine("--------------------");
            Console.WriteLine("Done");
            Console.WriteLine("--------------------");
            Console.ReadLine();
        }

        static private bool ImportAnnotaiton(CPDFDocument document)
        {
            var path = outputPath + "//ImportAnnotationTest.pdf";

            if (!document.ImportAnnotationFromXFDFPath("Annotations.xfdf", tempPath))
            {
                return false;
            }
            if (!document.WriteToFilePath(path))
            {
                return false;
            }
            Console.WriteLine("Browse the changed file in " + path); 
            return true;
        }

        static private bool ExportAnnotaiton(CPDFDocument document)
        {
            var path = outputPath+ "//ExportAnnotationTest.xfdf";
            if (document.ExportAnnotationToXFDFPath(path, tempPath)) 
            {
                return false;
            }
            Console.WriteLine("Xfdf file in " + path);

            return true;
        }
    }
}