Beispiel #1
0
        public ActionResult AnnotationFlatten(string InsideBrowser, string checkboxFlatten)
        {
            //Creates a new PDF document.
            PdfDocument document = new PdfDocument();

            //Creates a new page
            PdfPage page = document.Pages.Add();

            document.PageSettings.SetMargins(0);

            //Create new PDF color
            PdfColor blackColor = new PdfColor(0, 0, 0);

            RectangleF bounds = new RectangleF(350, 50, 80, 80);
            PdfFont    font   = new PdfStandardFont(PdfFontFamily.Helvetica, 10f);
            PdfBrush   brush  = new PdfSolidBrush(blackColor);

            //Creates a new Circle annotation.
            PdfCircleAnnotation circleannotation = new PdfCircleAnnotation(bounds);

            circleannotation.InnerColor      = new PdfColor(Color.Yellow);
            circleannotation.Color           = new PdfColor(Color.Red);
            circleannotation.AnnotationFlags = PdfAnnotationFlags.Default;
            circleannotation.Author          = "Syncfusion";
            circleannotation.Subject         = "CircleAnnotation";
            circleannotation.ModifiedDate    = new DateTime(2015, 1, 18);
            page.Annotations.Add(circleannotation);
            page.Graphics.DrawString("Circle Annotation", font, brush, new PointF(350, 10));

            //Creates a new Ellipse annotation.
            PdfEllipseAnnotation ellipseannotation = new PdfEllipseAnnotation(new RectangleF(30, 30, 50, 100), "Ellipse Annotation");

            ellipseannotation.Color      = new PdfColor(Color.Red);
            ellipseannotation.InnerColor = new PdfColor(Color.Yellow);
            page.Graphics.DrawString("Ellipse Annotation", font, brush, new PointF(30, 10));
            page.Annotations.Add(ellipseannotation);

            //Creates a new Square annotation.
            PdfSquareAnnotation squareannotation = new PdfSquareAnnotation(new RectangleF(30, 200, 80, 80));

            squareannotation.Text       = "SquareAnnotation";
            squareannotation.InnerColor = new PdfColor(Color.Red);
            squareannotation.Color      = new PdfColor(Color.Yellow);
            page.Graphics.DrawString("Square Annotation", font, brush, new PointF(30, 180));
            page.Annotations.Add(squareannotation);

            //Creates a new Rectangle annotation.
            RectangleF             rectannot           = new RectangleF(350, 220, 100, 50);
            PdfRectangleAnnotation rectangleannotation = new PdfRectangleAnnotation(rectannot, "RectangleAnnotation");

            rectangleannotation.InnerColor = new PdfColor(Color.Red);
            rectangleannotation.Color      = new PdfColor(Color.Yellow);
            page.Graphics.DrawString("Rectangle Annotation", font, brush, new PointF(350, 180));
            page.Annotations.Add(rectangleannotation);

            //Creates a new Line annotation.
            int[]             points         = new int[] { 400, 450, 550, 450 };
            PdfLineAnnotation lineAnnotation = new PdfLineAnnotation(points, "Line Annoation is the one of the annotation type...");

            lineAnnotation.Author       = "Syncfusion";
            lineAnnotation.Subject      = "LineAnnotation";
            lineAnnotation.ModifiedDate = new DateTime(2015, 1, 18);
            lineAnnotation.Text         = "PdfLineAnnotation";
            lineAnnotation.BackColor    = new PdfColor(Color.Red);
            page.Graphics.DrawString("Line Annotation", font, brush, new PointF(400, 320));
            page.Annotations.Add(lineAnnotation);

            //Creates a new Polygon annotation.
            int[] polypoints = new int[] { 50, 398, 100, 425, 200, 455, 300, 330, 180, 330 };
            PdfPolygonAnnotation polygonannotation = new PdfPolygonAnnotation(polypoints, "PolygonAnnotation");

            polygonannotation.Bounds = new RectangleF(30, 350, 300, 200);
            PdfPen pen = new PdfPen(Color.Red);

            polygonannotation.Text       = "polygon";
            polygonannotation.Color      = new PdfColor(Color.Red);
            polygonannotation.InnerColor = new PdfColor(Color.LightPink);
            page.Graphics.DrawString("Polygon Annotation", font, brush, new PointF(50, 320));
            page.Annotations.Add(polygonannotation);

            //Creates a new Freetext annotation.
            RectangleF            freetextrect = new RectangleF(405, 525, 80, 30);
            PdfFreeTextAnnotation freeText     = new PdfFreeTextAnnotation(freetextrect);

            freeText.MarkupText      = "Free Text with Callouts";
            freeText.TextMarkupColor = new PdfColor(Color.Green);
            freeText.Font            = new PdfStandardFont(PdfFontFamily.Helvetica, 7f);
            freeText.BorderColor     = new PdfColor(Color.Blue);
            freeText.Border          = new PdfAnnotationBorder(.5f);
            freeText.AnnotationFlags = PdfAnnotationFlags.Default;
            freeText.Text            = "Free Text";
            freeText.Color           = new PdfColor(Color.Yellow);
            PointF[] Freetextpoints = { new PointF(365, 580), new PointF(379, 534), new PointF(405, 534) };
            freeText.CalloutLines = Freetextpoints;
            page.Graphics.DrawString("FreeText Annotation", font, brush, new PointF(400, 510));
            page.Annotations.Add(freeText);

            //Creates a new TextMarkup annotation.
            string     s = "This is TextMarkup annotation!!!";
            RectangleF Textmarkuprect = new RectangleF(30, 540, 200, 20);

            page.Graphics.DrawString(s, font, brush, new PointF(30, 540));
            PdfTextMarkupAnnotation textannot = new PdfTextMarkupAnnotation("sample", "Highlight", s, new PointF(70, 580), font);

            textannot.Author                   = "Annotation";
            textannot.Opacity                  = 1.0f;
            textannot.Subject                  = "pdftextmarkupannotation";
            textannot.ModifiedDate             = new DateTime(2015, 1, 18);
            textannot.TextMarkupAnnotationType = PdfTextMarkupAnnotationType.StrikeOut;
            textannot.TextMarkupColor          = new PdfColor(Color.Yellow);
            textannot.InnerColor               = new PdfColor(Color.Red);
            textannot.Color = new PdfColor(Color.Yellow);
            page.Graphics.DrawString("TextMarkup Annotation", font, brush, new PointF(30, 510));
            page.Annotations.Add(textannot);

            //Creates a new Ink annotation.
            List <float> linePoints = new List <float> {
                72.919f, 136.376f, 72.264f, 136.376f, 62.446f, 142.922f, 61.137f, 142.922f, 55.901f, 139.649f, 55.246f, 138.34f, 54.592f, 132.449f, 54.592f, 127.867f, 55.901f, 125.904f, 59.828f, 121.976f, 63.101f, 121.322f, 65.719f, 122.631f, 68.992f, 125.249f, 70.301f, 130.485f, 71.61f, 133.104f, 72.264f, 136.376f, 72.919f, 140.304f, 74.883f, 144.885f, 76.192f, 150.776f, 76.192f, 151.431f, 76.192f, 152.085f, 76.192f, 158.631f, 76.192f, 159.94f, 75.537f, 155.358f, 74.228f, 150.122f, 74.228f, 146.195f, 73.574f, 141.613f, 73.574f, 137.685f, 74.228f, 132.449f, 74.883f, 128.522f, 75.537f, 124.594f, 76.192f, 123.285f, 76.846f, 122.631f, 80.774f, 122.631f, 82.737f, 123.285f, 85.355f, 125.249f, 88.628f, 129.831f, 89.283f, 133.104f, 89.937f, 137.031f, 90.592f, 140.958f, 89.937f, 142.267f, 86.665f, 141.613f, 85.355f, 140.304f, 84.701f, 138.34f, 84.701f, 137.685f, 85.355f, 137.031f, 87.974f, 135.722f, 90.592f, 136.376f, 92.555f, 137.031f, 96.483f, 139.649f, 98.446f, 140.958f, 101.719f, 142.922f, 103.028f, 142.922f, 100.41f, 138.34f, 99.756f, 134.413f, 99.101f, 131.14f, 99.101f, 128.522f, 99.756f, 127.213f, 101.065f, 125.904f, 102.374f, 123.94f, 103.683f, 123.94f, 107.61f, 125.904f, 110.228f, 129.831f, 114.156f, 135.067f, 117.428f, 140.304f, 119.392f, 143.576f, 121.356f, 144.231f, 122.665f, 144.231f, 123.974f, 142.267f, 126.592f, 139.649f, 127.247f, 140.304f, 126.592f, 142.922f, 124.628f, 143.576f, 122.01f, 142.922f, 118.083f, 141.613f, 114.81f, 136.376f, 114.81f, 131.14f, 113.501f, 127.213f, 114.156f, 125.904f, 118.083f, 125.904f, 120.701f, 126.558f, 123.319f, 130.485f, 125.283f, 136.376f, 125.937f, 140.304f, 125.937f, 142.922f, 126.592f, 143.576f, 125.937f, 135.722f, 125.937f, 131.794f, 125.937f, 131.14f, 127.247f, 129.176f, 129.21f, 127.213f, 131.828f, 127.213f, 134.447f, 128.522f, 136.41f, 136.376f, 139.028f, 150.122f, 141.647f, 162.558f, 140.992f, 163.213f, 138.374f, 160.595f, 135.756f, 153.395f, 135.101f, 148.158f, 134.447f, 140.304f, 134.447f, 130.485f, 133.792f, 124.594f, 133.792f, 115.431f, 133.792f, 110.194f, 133.792f, 105.612f, 134.447f, 105.612f, 137.065f, 110.194f, 137.719f, 116.74f, 139.028f, 120.013f, 139.028f, 123.94f, 137.719f, 127.213f, 135.756f, 130.485f, 134.447f, 130.485f, 133.792f, 130.485f, 137.719f, 131.794f, 141.647f, 135.722f, 146.883f, 142.922f, 152.774f, 153.395f, 153.428f, 159.286f, 150.156f, 159.94f, 147.537f, 156.667f, 146.883f, 148.813f, 146.883f, 140.958f, 146.883f, 134.413f, 146.883f, 125.904f, 145.574f, 118.703f, 145.574f, 114.776f, 145.574f, 112.158f, 146.228f, 111.503f, 147.537f, 111.503f, 148.192f, 112.158f, 150.156f, 112.812f, 150.81f, 113.467f, 152.119f, 114.776f, 154.083f, 117.394f, 155.392f, 119.358f, 156.701f, 120.667f, 157.356f, 121.976f, 156.701f, 121.322f, 156.047f, 120.013f, 155.392f, 119.358f, 154.083f, 117.394f, 154.083f, 116.74f, 152.774f, 114.776f, 152.119f, 114.121f, 150.81f, 113.467f, 149.501f, 113.467f, 147.537f, 112.158f, 146.883f, 112.158f, 145.574f, 111.503f, 144.919f, 112.158f, 144.265f, 114.121f, 144.265f, 115.431f, 144.265f, 116.74f, 144.265f, 117.394f, 144.265f, 118.049f, 144.919f, 118.703f, 145.574f, 120.667f, 146.228f, 122.631f, 147.537f, 123.285f, 147.537f, 124.594f, 148.192f, 125.904f, 147.537f, 128.522f, 147.537f, 129.176f, 147.537f, 130.485f, 147.537f, 132.449f, 147.537f, 134.413f, 147.537f, 136.376f, 147.537f, 138.34f, 147.537f, 138.994f, 145.574f, 138.994f, 142.956f, 138.252f
            };
            RectangleF       rectangle     = new RectangleF(30, 580, 300, 400);
            PdfInkAnnotation inkAnnotation = new PdfInkAnnotation(rectangle, linePoints);

            inkAnnotation.Bounds = rectangle;
            inkAnnotation.Color  = new PdfColor(Color.Red);
            page.Graphics.DrawString("Ink Annotation", font, brush, new PointF(30, 610));
            page.Annotations.Add(inkAnnotation);

            //Creates a new popup annotation.
            RectangleF         popupRect       = new RectangleF(430, 670, 30, 30);
            PdfPopupAnnotation popupAnnotation = new PdfPopupAnnotation();

            popupAnnotation.Border.Width            = 4;
            popupAnnotation.Border.HorizontalRadius = 20;
            popupAnnotation.Border.VerticalRadius   = 30;
            popupAnnotation.Opacity    = 1;
            popupAnnotation.Open       = true;
            popupAnnotation.Text       = "Popup Annotation";
            popupAnnotation.Color      = Color.Green;
            popupAnnotation.InnerColor = Color.Blue;
            popupAnnotation.Bounds     = popupRect;
            if (checkboxFlatten == "Flatten")
            {
                popupAnnotation.FlattenPopUps = true;
                popupAnnotation.Flatten       = true;
            }
            page.Graphics.DrawString("Popup Annotation", font, brush, new PointF(400, 610));
            page.Annotations.Add(popupAnnotation);

            //Creates a new Line measurement annotation.
            points = new int[] { 400, 350, 550, 350 };
            PdfLineMeasurementAnnotation lineMeasureAnnot = new PdfLineMeasurementAnnotation(points);

            lineMeasureAnnot.Author                 = "Syncfusion";
            lineMeasureAnnot.Subject                = "LineAnnotation";
            lineMeasureAnnot.ModifiedDate           = new DateTime(2015, 1, 18);
            lineMeasureAnnot.Unit                   = PdfMeasurementUnit.Inch;
            lineMeasureAnnot.lineBorder.BorderWidth = 2;
            lineMeasureAnnot.Font                   = new PdfStandardFont(PdfFontFamily.Helvetica, 10f, PdfFontStyle.Regular);
            lineMeasureAnnot.Color                  = new PdfColor(Color.Red);
            if (checkboxFlatten == "Flatten")
            {
                lineMeasureAnnot.Flatten = true;
            }
            page.Graphics.DrawString("Line Measurement Annotation", font, brush, new PointF(370, 410));
            page.Annotations.Add(lineMeasureAnnot);

            PdfPage secondPage = document.Pages.Add();
            //Creates a new Freetext annotation.
            RectangleF            freetextrect0 = new RectangleF(80, 130, 100, 50);
            PdfFreeTextAnnotation freeText0     = new PdfFreeTextAnnotation(freetextrect0);

            freeText0.MarkupText      = "Free Text with Callouts";
            freeText0.TextMarkupColor = new PdfColor(Color.Green);
            freeText0.Font            = new PdfStandardFont(PdfFontFamily.Helvetica, 7f);
            freeText0.BorderColor     = new PdfColor(Color.Blue);
            freeText0.Border          = new PdfAnnotationBorder(.5f);
            freeText0.AnnotationFlags = PdfAnnotationFlags.Default;
            freeText0.Text            = "Free Text";
            freeText0.Rotate          = PdfAnnotationRotateAngle.RotateAngle90;
            freeText0.Color           = new PdfColor(Color.Yellow);
            PointF[] Freetextpoints0 = { new PointF(45, 190), new PointF(60, 145), new PointF(80, 145) };
            freeText0.CalloutLines = Freetextpoints0;
            secondPage.Graphics.DrawString("Rotated FreeText Annotation", font, brush, new PointF(40, 110));
            if (checkboxFlatten == "Flatten")
            {
                freeText0.Flatten = true;
            }
            secondPage.Annotations.Add(freeText0);

            MemoryStream SourceStream = new MemoryStream();

            document.Save(SourceStream);
            document.Close(true);

            //Creates a new Loaded document.
            PdfLoadedDocument lDoc  = new PdfLoadedDocument(SourceStream);
            PdfLoadedPage     lpage = lDoc.Pages[0] as PdfLoadedPage;

            if (checkboxFlatten == "Flatten")
            {
                lpage.Annotations.Flatten = true;
            }

            //Save the PDF to the MemoryStream
            MemoryStream ms = new MemoryStream();

            lDoc.Save(ms);

            //If the position is not set to '0' then the PDF will be empty.
            ms.Position = 0;

            lDoc.Close(true);

            //Download the PDF document in the browser.
            FileStreamResult fileStreamResult = new FileStreamResult(ms, "application/pdf");

            fileStreamResult.FileDownloadName = "Annotation.pdf";
            return(fileStreamResult);
        }
Beispiel #2
0
        /// <summary>
        /// Invoked when this page is about to be displayed in a Frame.
        /// </summary>
        /// <param name="e">Event data that describes how this page was reached.  The Parameter
        /// property is typically used to configure the page.</param>
        //protected override void OnNavigatedTo(NavigationEventArgs e)
        //{
        //}

        private async void Button_Click_1(object sender, RoutedEventArgs e)
        {
            //Create a new PDF document
            PdfDocument document = new PdfDocument();
            PdfPage     page     = document.Pages.Add();

            document.PageSettings.SetMargins(0);

            PdfFont  font  = new PdfStandardFont(PdfFontFamily.Helvetica, 10f);
            PdfBrush brush = new PdfSolidBrush(System.Drawing.Color.FromArgb(255, 0, 0, 0));
            string   text  = "Adventure Works Cycles, the fictitious company on which the AdventureWorks sample databases are based, is a large, multinational manufacturing company. The company manufactures and sells metal and composite bicycles to North American, European and Asian commercial markets. While its base operation is located in Washington with 290 employees, several regional sales teams are located throughout their market base.";

            page.Graphics.DrawString("Annotation with Comments and Reviews", font, brush, new PointF(30, 10));
            page.Graphics.DrawString(text, font, brush, new RectangleF(30, 40, page.GetClientSize().Width - 60, 60));

            string markupText = "North American, European and Asian commercial markets";
            PdfTextMarkupAnnotation textMarkupAnnot = new PdfTextMarkupAnnotation("sample", "Highlight", markupText, new PointF(147, 63.5f), font);

            textMarkupAnnot.Author                   = "Annotation";
            textMarkupAnnot.Opacity                  = 1.0f;
            textMarkupAnnot.Subject                  = "Comments and Reviews";
            textMarkupAnnot.ModifiedDate             = new DateTime(2015, 1, 18);
            textMarkupAnnot.TextMarkupAnnotationType = PdfTextMarkupAnnotationType.Highlight;
            textMarkupAnnot.TextMarkupColor          = new PdfColor(System.Drawing.Color.Yellow);
            textMarkupAnnot.InnerColor               = new PdfColor(System.Drawing.Color.Red);
            textMarkupAnnot.Color = new PdfColor(System.Drawing.Color.Yellow);
            if (flatten.IsChecked == true)
            {
                textMarkupAnnot.Flatten = true;
            }
            //Create a new comment.
            PdfPopupAnnotation userQuery = new PdfPopupAnnotation();

            userQuery.Author       = "John";
            userQuery.Text         = "Can you please change South Asian to Asian?";
            userQuery.ModifiedDate = new DateTime(2015, 1, 18);
            //Add comment to the annotation
            textMarkupAnnot.Comments.Add(userQuery);

            //Creates a new comment
            PdfPopupAnnotation userAnswer = new PdfPopupAnnotation();

            userAnswer.Author       = "Smith";
            userAnswer.Text         = "South Asian has changed as Asian";
            userAnswer.ModifiedDate = new DateTime(2015, 1, 18);
            //Add comment to the annotation
            textMarkupAnnot.Comments.Add(userAnswer);

            //Creates a new review
            PdfPopupAnnotation userAnswerReview = new PdfPopupAnnotation();

            userAnswerReview.Author       = "Smith";
            userAnswerReview.State        = PdfAnnotationState.Completed;
            userAnswerReview.StateModel   = PdfAnnotationStateModel.Review;
            userAnswerReview.ModifiedDate = new DateTime(2015, 1, 18);
            //Add review to the comment
            userAnswer.ReviewHistory.Add(userAnswerReview);

            //Creates a new review
            PdfPopupAnnotation userAnswerReviewJohn = new PdfPopupAnnotation();

            userAnswerReviewJohn.Author       = "John";
            userAnswerReviewJohn.State        = PdfAnnotationState.Accepted;
            userAnswerReviewJohn.StateModel   = PdfAnnotationStateModel.Review;
            userAnswerReviewJohn.ModifiedDate = new DateTime(2015, 1, 18);
            //Add review to the comment
            userAnswer.ReviewHistory.Add(userAnswerReviewJohn);

            //Add annotation to the page
            page.Annotations.Add(textMarkupAnnot);

            RectangleF bounds = new RectangleF(350, 170, 80, 80);

            //Creates a new Circle annotation.
            PdfCircleAnnotation circleannotation = new PdfCircleAnnotation(bounds);

            circleannotation.InnerColor      = new PdfColor(System.Drawing.Color.Yellow);
            circleannotation.Color           = new PdfColor(System.Drawing.Color.Red);
            circleannotation.AnnotationFlags = PdfAnnotationFlags.Default;
            circleannotation.Author          = "Syncfusion";
            circleannotation.Subject         = "CircleAnnotation";
            circleannotation.ModifiedDate    = new DateTime(2015, 1, 18);
            page.Annotations.Add(circleannotation);
            page.Graphics.DrawString("Circle Annotation", font, brush, new PointF(350, 130));


            //Creates a new Ellipse annotation.
            PdfEllipseAnnotation ellipseannotation = new PdfEllipseAnnotation(new RectangleF(30, 150, 50, 100), "Ellipse Annotation");

            ellipseannotation.Color      = new PdfColor(System.Drawing.Color.Red);
            ellipseannotation.InnerColor = new PdfColor(System.Drawing.Color.Yellow);
            page.Graphics.DrawString("Ellipse Annotation", font, brush, new PointF(30, 130));
            page.Annotations.Add(ellipseannotation);

            //Creates a new Square annotation.
            PdfSquareAnnotation squareannotation = new PdfSquareAnnotation(new RectangleF(30, 300, 80, 80));

            squareannotation.Text       = "SquareAnnotation";
            squareannotation.InnerColor = new PdfColor(System.Drawing.Color.Red);
            squareannotation.Color      = new PdfColor(System.Drawing.Color.Yellow);
            page.Graphics.DrawString("Square Annotation", font, brush, new PointF(30, 280));
            page.Annotations.Add(squareannotation);

            //Creates a new Rectangle annotation.
            RectangleF             rectannot           = new RectangleF(350, 320, 100, 50);
            PdfRectangleAnnotation rectangleannotation = new PdfRectangleAnnotation(rectannot, "RectangleAnnotation");

            rectangleannotation.InnerColor = new PdfColor(System.Drawing.Color.Red);
            rectangleannotation.Color      = new PdfColor(System.Drawing.Color.Yellow);
            page.Graphics.DrawString("Rectangle Annotation", font, brush, new PointF(350, 280));
            page.Annotations.Add(rectangleannotation);

            //Creates a new Line annotation.
            int[]             points         = new int[] { 400, 350, 550, 350 };
            PdfLineAnnotation lineAnnotation = new PdfLineAnnotation(points, "Line Annoation is the one of the annotation type...");

            lineAnnotation.Author       = "Syncfusion";
            lineAnnotation.Subject      = "LineAnnotation";
            lineAnnotation.ModifiedDate = new DateTime(2015, 1, 18);
            lineAnnotation.Text         = "PdfLineAnnotation";
            lineAnnotation.BackColor    = new PdfColor(System.Drawing.Color.Red);
            page.Graphics.DrawString("Line Annotation", font, brush, new PointF(400, 420));
            page.Annotations.Add(lineAnnotation);

            //Creates a new Polygon annotation.
            int[] polypoints = new int[] { 50, 298, 100, 325, 200, 355, 300, 230, 180, 230 };
            PdfPolygonAnnotation polygonannotation = new PdfPolygonAnnotation(polypoints, "PolygonAnnotation");

            polygonannotation.Bounds = new RectangleF(30, 210, 300, 200);
            PdfPen pen = new PdfPen(System.Drawing.Color.Red);

            polygonannotation.Text       = "polygon";
            polygonannotation.Color      = new PdfColor(System.Drawing.Color.Red);
            polygonannotation.InnerColor = new PdfColor(System.Drawing.Color.LightPink);
            page.Graphics.DrawString("Polygon Annotation", font, brush, new PointF(50, 420));
            page.Annotations.Add(polygonannotation);

            //Creates a new Freetext annotation.
            RectangleF            freetextrect = new RectangleF(405, 645, 80, 30);
            PdfFreeTextAnnotation freeText     = new PdfFreeTextAnnotation(freetextrect);

            freeText.MarkupText      = "Free Text with Callouts";
            freeText.TextMarkupColor = new PdfColor(System.Drawing.Color.Green);
            freeText.Font            = new PdfStandardFont(PdfFontFamily.Helvetica, 7f);
            freeText.BorderColor     = new PdfColor(System.Drawing.Color.Blue);
            freeText.Border          = new PdfAnnotationBorder(.5f);
            freeText.AnnotationFlags = PdfAnnotationFlags.Default;
            freeText.Text            = "Free Text";
            freeText.Color           = new PdfColor(System.Drawing.Color.Yellow);
            PointF[] Freetextpoints = { new PointF(365, 700), new PointF(379, 654), new PointF(405, 654) };
            freeText.CalloutLines = Freetextpoints;
            page.Graphics.DrawString("FreeText Annotation", font, brush, new PointF(400, 610));
            page.Annotations.Add(freeText);

            //Creates a new Ink annotation.
            List <float> linePoints = new List <float> {
                72.919f, 136.376f, 72.264f, 136.376f, 62.446f, 142.922f, 61.137f, 142.922f, 55.901f, 139.649f, 55.246f, 138.34f, 54.592f, 132.449f, 54.592f, 127.867f, 55.901f, 125.904f, 59.828f, 121.976f, 63.101f, 121.322f, 65.719f, 122.631f, 68.992f, 125.249f, 70.301f, 130.485f, 71.61f, 133.104f, 72.264f, 136.376f, 72.919f, 140.304f, 74.883f, 144.885f, 76.192f, 150.776f, 76.192f, 151.431f, 76.192f, 152.085f, 76.192f, 158.631f, 76.192f, 159.94f, 75.537f, 155.358f, 74.228f, 150.122f, 74.228f, 146.195f, 73.574f, 141.613f, 73.574f, 137.685f, 74.228f, 132.449f, 74.883f, 128.522f, 75.537f, 124.594f, 76.192f, 123.285f, 76.846f, 122.631f, 80.774f, 122.631f, 82.737f, 123.285f, 85.355f, 125.249f, 88.628f, 129.831f, 89.283f, 133.104f, 89.937f, 137.031f, 90.592f, 140.958f, 89.937f, 142.267f, 86.665f, 141.613f, 85.355f, 140.304f, 84.701f, 138.34f, 84.701f, 137.685f, 85.355f, 137.031f, 87.974f, 135.722f, 90.592f, 136.376f, 92.555f, 137.031f, 96.483f, 139.649f, 98.446f, 140.958f, 101.719f, 142.922f, 103.028f, 142.922f, 100.41f, 138.34f, 99.756f, 134.413f, 99.101f, 131.14f, 99.101f, 128.522f, 99.756f, 127.213f, 101.065f, 125.904f, 102.374f, 123.94f, 103.683f, 123.94f, 107.61f, 125.904f, 110.228f, 129.831f, 114.156f, 135.067f, 117.428f, 140.304f, 119.392f, 143.576f, 121.356f, 144.231f, 122.665f, 144.231f, 123.974f, 142.267f, 126.592f, 139.649f, 127.247f, 140.304f, 126.592f, 142.922f, 124.628f, 143.576f, 122.01f, 142.922f, 118.083f, 141.613f, 114.81f, 136.376f, 114.81f, 131.14f, 113.501f, 127.213f, 114.156f, 125.904f, 118.083f, 125.904f, 120.701f, 126.558f, 123.319f, 130.485f, 125.283f, 136.376f, 125.937f, 140.304f, 125.937f, 142.922f, 126.592f, 143.576f, 125.937f, 135.722f, 125.937f, 131.794f, 125.937f, 131.14f, 127.247f, 129.176f, 129.21f, 127.213f, 131.828f, 127.213f, 134.447f, 128.522f, 136.41f, 136.376f, 139.028f, 150.122f, 141.647f, 162.558f, 140.992f, 163.213f, 138.374f, 160.595f, 135.756f, 153.395f, 135.101f, 148.158f, 134.447f, 140.304f, 134.447f, 130.485f, 133.792f, 124.594f, 133.792f, 115.431f, 133.792f, 110.194f, 133.792f, 105.612f, 134.447f, 105.612f, 137.065f, 110.194f, 137.719f, 116.74f, 139.028f, 120.013f, 139.028f, 123.94f, 137.719f, 127.213f, 135.756f, 130.485f, 134.447f, 130.485f, 133.792f, 130.485f, 137.719f, 131.794f, 141.647f, 135.722f, 146.883f, 142.922f, 152.774f, 153.395f, 153.428f, 159.286f, 150.156f, 159.94f, 147.537f, 156.667f, 146.883f, 148.813f, 146.883f, 140.958f, 146.883f, 134.413f, 146.883f, 125.904f, 145.574f, 118.703f, 145.574f, 114.776f, 145.574f, 112.158f, 146.228f, 111.503f, 147.537f, 111.503f, 148.192f, 112.158f, 150.156f, 112.812f, 150.81f, 113.467f, 152.119f, 114.776f, 154.083f, 117.394f, 155.392f, 119.358f, 156.701f, 120.667f, 157.356f, 121.976f, 156.701f, 121.322f, 156.047f, 120.013f, 155.392f, 119.358f, 154.083f, 117.394f, 154.083f, 116.74f, 152.774f, 114.776f, 152.119f, 114.121f, 150.81f, 113.467f, 149.501f, 113.467f, 147.537f, 112.158f, 146.883f, 112.158f, 145.574f, 111.503f, 144.919f, 112.158f, 144.265f, 114.121f, 144.265f, 115.431f, 144.265f, 116.74f, 144.265f, 117.394f, 144.265f, 118.049f, 144.919f, 118.703f, 145.574f, 120.667f, 146.228f, 122.631f, 147.537f, 123.285f, 147.537f, 124.594f, 148.192f, 125.904f, 147.537f, 128.522f, 147.537f, 129.176f, 147.537f, 130.485f, 147.537f, 132.449f, 147.537f, 134.413f, 147.537f, 136.376f, 147.537f, 138.34f, 147.537f, 138.994f, 145.574f, 138.994f, 142.956f, 138.252f
            };
            RectangleF       rectangle     = new RectangleF(30, 580, 300, 400);
            PdfInkAnnotation inkAnnotation = new PdfInkAnnotation(rectangle, linePoints);

            inkAnnotation.Bounds = rectangle;
            inkAnnotation.Color  = new PdfColor(System.Drawing.Color.Red);
            page.Graphics.DrawString("Ink Annotation", font, brush, new PointF(30, 610));
            page.Annotations.Add(inkAnnotation);

            PdfPage secondPage = document.Pages.Add();


            //Creates a new TextMarkup annotation.
            string s = "This is TextMarkup annotation!!!";

            secondPage.Graphics.DrawString(s, font, brush, new PointF(30, 70));
            PdfTextMarkupAnnotation textannot = new PdfTextMarkupAnnotation("sample", "Strikeout", s, new PointF(30, 70), font);

            textannot.Author                   = "Annotation";
            textannot.Opacity                  = 1.0f;
            textannot.Subject                  = "pdftextmarkupannotation";
            textannot.ModifiedDate             = new DateTime(2015, 1, 18);
            textannot.TextMarkupAnnotationType = PdfTextMarkupAnnotationType.StrikeOut;
            textannot.TextMarkupColor          = new PdfColor(System.Drawing.Color.Yellow);
            textannot.InnerColor               = new PdfColor(System.Drawing.Color.Red);
            textannot.Color = new PdfColor(System.Drawing.Color.Yellow);
            if (flatten.IsChecked == true)
            {
                textannot.Flatten = true;
            }
            secondPage.Graphics.DrawString("TextMarkup Annotation", font, brush, new PointF(30, 40));
            secondPage.Annotations.Add(textannot);

            //Creates a new popup annotation.
            RectangleF         popupRect       = new RectangleF(430, 70, 30, 30);
            PdfPopupAnnotation popupAnnotation = new PdfPopupAnnotation();

            popupAnnotation.Border.Width            = 4;
            popupAnnotation.Border.HorizontalRadius = 20;
            popupAnnotation.Border.VerticalRadius   = 30;
            popupAnnotation.Opacity    = 1;
            popupAnnotation.Open       = true;
            popupAnnotation.Text       = "Popup Annotation";
            popupAnnotation.Color      = System.Drawing.Color.Green;
            popupAnnotation.InnerColor = System.Drawing.Color.Blue;
            popupAnnotation.Bounds     = popupRect;
            if (flatten.IsChecked == true)
            {
                popupAnnotation.FlattenPopUps = true;
                popupAnnotation.Flatten       = true;
            }
            secondPage.Graphics.DrawString("Popup Annotation", font, brush, new PointF(400, 40));
            secondPage.Annotations.Add(popupAnnotation);

            //Creates a new Line measurement annotation.
            points = new int[] { 400, 630, 550, 630 };
            PdfLineMeasurementAnnotation lineMeasureAnnot = new PdfLineMeasurementAnnotation(points);

            lineMeasureAnnot.Author                 = "Syncfusion";
            lineMeasureAnnot.Subject                = "LineAnnotation";
            lineMeasureAnnot.ModifiedDate           = new DateTime(2015, 1, 18);
            lineMeasureAnnot.Unit                   = PdfMeasurementUnit.Inch;
            lineMeasureAnnot.lineBorder.BorderWidth = 2;
            lineMeasureAnnot.Font                   = new PdfStandardFont(PdfFontFamily.Helvetica, 10f, PdfFontStyle.Regular);
            lineMeasureAnnot.Color                  = new PdfColor(System.Drawing.Color.Red);
            if (flatten.IsChecked == true)
            {
                lineMeasureAnnot.Flatten = true;
            }
            secondPage.Graphics.DrawString("Line Measurement Annotation", font, brush, new PointF(370, 130));
            secondPage.Annotations.Add(lineMeasureAnnot);

            //Creates a new Freetext annotation.
            RectangleF            freetextrect0 = new RectangleF(80, 160, 100, 50);
            PdfFreeTextAnnotation freeText0     = new PdfFreeTextAnnotation(freetextrect0);

            freeText0.MarkupText      = "Free Text with Callouts";
            freeText0.TextMarkupColor = new PdfColor(System.Drawing.Color.Green);
            freeText0.Font            = new PdfStandardFont(PdfFontFamily.Helvetica, 7f);
            freeText0.BorderColor     = new PdfColor(System.Drawing.Color.Blue);
            freeText0.Border          = new PdfAnnotationBorder(.5f);
            freeText0.AnnotationFlags = PdfAnnotationFlags.Default;
            freeText0.Text            = "Free Text";
            freeText0.Rotate          = PdfAnnotationRotateAngle.RotateAngle90;
            freeText0.Color           = new PdfColor(System.Drawing.Color.Yellow);
            PointF[] Freetextpoints0 = { new PointF(45, 220), new PointF(60, 175), new PointF(80, 175) };
            freeText0.CalloutLines = Freetextpoints0;
            secondPage.Graphics.DrawString("Rotated FreeText Annotation", font, brush, new PointF(40, 130));
            if (flatten.IsChecked == true)
            {
                freeText0.Flatten = true;
            }
            secondPage.Annotations.Add(freeText0);

            PdfRectangleAnnotation cloudannotation = new PdfRectangleAnnotation(new RectangleF(30, 300, 100, 50), "Rectangle Cloud Annoatation");

            cloudannotation.Border.BorderWidth = 1;
            cloudannotation.Color      = System.Drawing.Color.Red;
            cloudannotation.InnerColor = System.Drawing.Color.Blue;
            PdfBorderEffect bordereffect = new PdfBorderEffect();

            bordereffect.Intensity       = 2;
            bordereffect.Style           = PdfBorderEffectStyle.Cloudy;
            cloudannotation.BorderEffect = bordereffect;
            secondPage.Graphics.DrawString("Cloud Annotation", font, brush, new PointF(40, 260));
            secondPage.Annotations.Add(cloudannotation);
            if (flatten.IsChecked == false)
            {
                PdfRedactionAnnotation redactionannot = new PdfRedactionAnnotation();
                redactionannot.Bounds        = new RectangleF(350, 300, 100, 50);
                redactionannot.Text          = "Redaction Annotation";
                redactionannot.InnerColor    = System.Drawing.Color.Orange;
                redactionannot.BorderColor   = System.Drawing.Color.Red;
                redactionannot.Font          = new PdfStandardFont(PdfFontFamily.Helvetica, 13);
                redactionannot.TextColor     = System.Drawing.Color.Green;
                redactionannot.OverlayText   = "REDACTED";
                redactionannot.RepeatText    = true;
                redactionannot.TextAlignment = PdfTextAlignment.Left;
                redactionannot.SetAppearance(true);
                secondPage.Graphics.DrawString("Redaction Annotation", font, brush, new PointF(350, 260));
                secondPage.Annotations.Add(redactionannot);
            }
            //Saving the document
            MemoryStream SourceStream = new MemoryStream();

            document.Save(SourceStream);
            document.Close(true);

            //Loading and flatten the  annotation
            PdfLoadedDocument lDoc   = new PdfLoadedDocument(SourceStream);
            PdfLoadedPage     lpage1 = lDoc.Pages[0] as PdfLoadedPage;
            PdfLoadedPage     lpage2 = lDoc.Pages[1] as PdfLoadedPage;

            if (flatten.IsChecked == true)
            {
                lpage1.Annotations.Flatten = true;
                lpage2.Annotations.Flatten = true;
            }
            MemoryStream stream = new MemoryStream();
            await lDoc.SaveAsync(stream);

            lDoc.Close(true);

            Save(stream, "Sample.pdf");
        }
        /// <summary>
        /// Invoked when this page is about to be displayed in a Frame.
        /// </summary>
        /// <param name="e">Event data that describes how this page was reached.  The Parameter
        /// property is typically used to configure the page.</param>
        //protected override void OnNavigatedTo(NavigationEventArgs e)
        //{
        //}

        private async void Button_Click_1(object sender, RoutedEventArgs e)
        {
            //Create a new PDF document
            PdfDocument document = new PdfDocument();
            PdfPage     page     = document.Pages.Add();

            document.PageSettings.SetMargins(0);

            RectangleF bounds = new RectangleF(350, 50, 80, 80);
            PdfFont    font   = new PdfStandardFont(PdfFontFamily.Helvetica, 10f);
            PdfBrush   brush  = new PdfSolidBrush(System.Drawing.Color.FromArgb(255, 0, 0, 0));
            PdfColor   yellow = new PdfColor(System.Drawing.Color.FromArgb(255, 255, 255, 0));
            PdfColor   red    = new PdfColor(System.Drawing.Color.FromArgb(255, 255, 0, 0));
            PdfColor   green  = new PdfColor(System.Drawing.Color.FromArgb(255, 0, 255, 0));
            PdfColor   blue   = new PdfColor(System.Drawing.Color.FromArgb(255, 0, 0, 255));

            //Creating circle annotation
            PdfCircleAnnotation circleannotation = new PdfCircleAnnotation(bounds);

            circleannotation.InnerColor      = yellow;
            circleannotation.Color           = red;
            circleannotation.AnnotationFlags = PdfAnnotationFlags.Default;
            circleannotation.Author          = "Syncfusion";
            circleannotation.Subject         = "CircleAnnotation";
            circleannotation.ModifiedDate    = new DateTime(2015, 1, 18);
            page.Annotations.Add(circleannotation);
            page.Graphics.DrawString("Circle Annotation", font, brush, new PointF(350, 10));

            //Creating ellipse annotation
            PdfEllipseAnnotation ellipseannotation = new PdfEllipseAnnotation(new RectangleF(30, 30, 50, 100), "Ellipse Annotation");

            ellipseannotation.Color      = yellow;
            ellipseannotation.InnerColor = red;
            page.Graphics.DrawString("Ellipse Annotation", font, brush, new PointF(30, 10));
            page.Annotations.Add(ellipseannotation);

            //Creating square annotation
            PdfSquareAnnotation squareannotation = new PdfSquareAnnotation(new RectangleF(30, 200, 80, 80));

            squareannotation.Text       = "SquareAnnotation";
            squareannotation.InnerColor = red;
            squareannotation.Color      = yellow;
            page.Graphics.DrawString("Square Annotation", font, brush, new PointF(30, 180));
            page.Annotations.Add(squareannotation);

            //Creating rectangle annotation
            RectangleF             rectangle1          = new RectangleF(350, 220, 100, 50);
            PdfRectangleAnnotation rectangleannotation = new PdfRectangleAnnotation(rectangle1, "RectangleAnnotation");

            rectangleannotation.InnerColor = red;
            rectangleannotation.Color      = yellow;
            page.Graphics.DrawString("Rectangle Annotation", font, brush, new PointF(350, 180));
            page.Annotations.Add(rectangleannotation);

            //Creating line annotation
            int[]             points         = new int[] { 400, 450, 550, 450 };
            PdfLineAnnotation lineAnnotation = new PdfLineAnnotation(points, "Line Annoation is the one of the annotation type...");

            lineAnnotation.Author       = "Syncfusion";
            lineAnnotation.Subject      = "LineAnnotation";
            lineAnnotation.ModifiedDate = new DateTime(2015, 1, 18);
            lineAnnotation.Text         = "PdfLineAnnotation";
            lineAnnotation.BackColor    = red;
            page.Graphics.DrawString("Line Annotation", font, brush, new PointF(400, 320));
            page.Annotations.Add(lineAnnotation);

            //Creating polygon annotation
            int[] points1 = new int[] { 50, 398, 100, 425, 200, 455, 300, 330, 180, 330 };
            PdfPolygonAnnotation polygonannotation = new PdfPolygonAnnotation(points1, "Polygon Annotation");

            polygonannotation.Bounds = new RectangleF(30, 350, 300, 200);
            PdfPen pen = new PdfPen(System.Drawing.Color.FromArgb(255, 255, 0, 0));

            polygonannotation.Text       = "polygon";
            polygonannotation.Color      = red;
            polygonannotation.InnerColor = yellow;
            page.Graphics.DrawString("PolygonAnnotation", font, brush, new PointF(50, 320));
            page.Annotations.Add(polygonannotation);


            //Creating text markup annotation
            string     s = "This is TextMarkup annotation!!!";
            RectangleF Textmarkuprect = new RectangleF(30, 540, 200, 20);

            page.Graphics.DrawString(s, font, brush, new PointF(30, 540));
            PdfTextMarkupAnnotation textannot = new PdfTextMarkupAnnotation("sample", "Highlight", s, new PointF(70, 580), font);

            textannot.Author                   = "Annotation";
            textannot.Opacity                  = 1.0f;
            textannot.Subject                  = "pdftextmarkupannotation";
            textannot.ModifiedDate             = new DateTime(2015, 1, 18);
            textannot.TextMarkupAnnotationType = PdfTextMarkupAnnotationType.StrikeOut;
            textannot.TextMarkupColor          = yellow;
            textannot.InnerColor               = red;
            textannot.Color = yellow;
            page.Graphics.DrawString("Text Markup Annotation", font, brush, new PointF(30, 510));
            page.Annotations.Add(textannot);

            //Creates a new Ink annotation.
            float[]          inkPoints     = new float[] { 72.919f, 136.376f, 72.264f, 136.376f, 62.446f, 142.922f, 61.137f, 142.922f, 55.901f, 139.649f, 55.246f, 138.34f, 54.592f, 132.449f, 54.592f, 127.867f, 55.901f, 125.904f, 59.828f, 121.976f, 63.101f, 121.322f, 65.719f, 122.631f, 68.992f, 125.249f, 70.301f, 130.485f, 71.61f, 133.104f, 72.264f, 136.376f, 72.919f, 140.304f, 74.883f, 144.885f, 76.192f, 150.776f, 76.192f, 151.431f, 76.192f, 152.085f, 76.192f, 158.631f, 76.192f, 159.94f, 75.537f, 155.358f, 74.228f, 150.122f, 74.228f, 146.195f, 73.574f, 141.613f, 73.574f, 137.685f, 74.228f, 132.449f, 74.883f, 128.522f, 75.537f, 124.594f, 76.192f, 123.285f, 76.846f, 122.631f, 80.774f, 122.631f, 82.737f, 123.285f, 85.355f, 125.249f, 88.628f, 129.831f, 89.283f, 133.104f, 89.937f, 137.031f, 90.592f, 140.958f, 89.937f, 142.267f, 86.665f, 141.613f, 85.355f, 140.304f, 84.701f, 138.34f, 84.701f, 137.685f, 85.355f, 137.031f, 87.974f, 135.722f, 90.592f, 136.376f, 92.555f, 137.031f, 96.483f, 139.649f, 98.446f, 140.958f, 101.719f, 142.922f, 103.028f, 142.922f, 100.41f, 138.34f, 99.756f, 134.413f, 99.101f, 131.14f, 99.101f, 128.522f, 99.756f, 127.213f, 101.065f, 125.904f, 102.374f, 123.94f, 103.683f, 123.94f, 107.61f, 125.904f, 110.228f, 129.831f, 114.156f, 135.067f, 117.428f, 140.304f, 119.392f, 143.576f, 121.356f, 144.231f, 122.665f, 144.231f, 123.974f, 142.267f, 126.592f, 139.649f, 127.247f, 140.304f, 126.592f, 142.922f, 124.628f, 143.576f, 122.01f, 142.922f, 118.083f, 141.613f, 114.81f, 136.376f, 114.81f, 131.14f, 113.501f, 127.213f, 114.156f, 125.904f, 118.083f, 125.904f, 120.701f, 126.558f, 123.319f, 130.485f, 125.283f, 136.376f, 125.937f, 140.304f, 125.937f, 142.922f, 126.592f, 143.576f, 125.937f, 135.722f, 125.937f, 131.794f, 125.937f, 131.14f, 127.247f, 129.176f, 129.21f, 127.213f, 131.828f, 127.213f, 134.447f, 128.522f, 136.41f, 136.376f, 139.028f, 150.122f, 141.647f, 162.558f, 140.992f, 163.213f, 138.374f, 160.595f, 135.756f, 153.395f, 135.101f, 148.158f, 134.447f, 140.304f, 134.447f, 130.485f, 133.792f, 124.594f, 133.792f, 115.431f, 133.792f, 110.194f, 133.792f, 105.612f, 134.447f, 105.612f, 137.065f, 110.194f, 137.719f, 116.74f, 139.028f, 120.013f, 139.028f, 123.94f, 137.719f, 127.213f, 135.756f, 130.485f, 134.447f, 130.485f, 133.792f, 130.485f, 137.719f, 131.794f, 141.647f, 135.722f, 146.883f, 142.922f, 152.774f, 153.395f, 153.428f, 159.286f, 150.156f, 159.94f, 147.537f, 156.667f, 146.883f, 148.813f, 146.883f, 140.958f, 146.883f, 134.413f, 146.883f, 125.904f, 145.574f, 118.703f, 145.574f, 114.776f, 145.574f, 112.158f, 146.228f, 111.503f, 147.537f, 111.503f, 148.192f, 112.158f, 150.156f, 112.812f, 150.81f, 113.467f, 152.119f, 114.776f, 154.083f, 117.394f, 155.392f, 119.358f, 156.701f, 120.667f, 157.356f, 121.976f, 156.701f, 121.322f, 156.047f, 120.013f, 155.392f, 119.358f, 154.083f, 117.394f, 154.083f, 116.74f, 152.774f, 114.776f, 152.119f, 114.121f, 150.81f, 113.467f, 149.501f, 113.467f, 147.537f, 112.158f, 146.883f, 112.158f, 145.574f, 111.503f, 144.919f, 112.158f, 144.265f, 114.121f, 144.265f, 115.431f, 144.265f, 116.74f, 144.265f, 117.394f, 144.265f, 118.049f, 144.919f, 118.703f, 145.574f, 120.667f, 146.228f, 122.631f, 147.537f, 123.285f, 147.537f, 124.594f, 148.192f, 125.904f, 147.537f, 128.522f, 147.537f, 129.176f, 147.537f, 130.485f, 147.537f, 132.449f, 147.537f, 134.413f, 147.537f, 136.376f, 147.537f, 138.34f, 147.537f, 138.994f, 145.574f, 138.994f, 142.956f, 138.252f };
            List <float>     linePoints    = new List <float>(inkPoints);
            RectangleF       rectangle     = new RectangleF(30, 580, 300, 400);
            PdfInkAnnotation inkAnnotation = new PdfInkAnnotation(rectangle, linePoints);

            inkAnnotation.Bounds = rectangle;
            inkAnnotation.Color  = red;
            page.Graphics.DrawString("Ink Annotation", font, brush, new PointF(30, 610));
            page.Annotations.Add(inkAnnotation);

            //Creates a new popup annotation.
            RectangleF         popupRect       = new RectangleF(430, 670, 30, 30);
            PdfPopupAnnotation popupAnnotation = new PdfPopupAnnotation();

            popupAnnotation.Border.Width            = 4;
            popupAnnotation.Border.HorizontalRadius = 20;
            popupAnnotation.Border.VerticalRadius   = 30;
            popupAnnotation.Opacity    = 1;
            popupAnnotation.Open       = true;
            popupAnnotation.Text       = "Popup Annotation";
            popupAnnotation.Color      = green;
            popupAnnotation.InnerColor = blue;
            popupAnnotation.Bounds     = popupRect;
            if (flatten.IsChecked == true)
            {
                popupAnnotation.FlattenPopUps = true;
                popupAnnotation.Flatten       = true;
            }
            page.Graphics.DrawString("Popup Annotation", font, brush, new PointF(410, 610));
            page.Annotations.Add(popupAnnotation);

            //Creates a new Line measurement annotation.
            points = new int[] { 400, 350, 550, 350 };
            PdfLineMeasurementAnnotation lineMeasureAnnot = new PdfLineMeasurementAnnotation(points);

            lineMeasureAnnot.Author                 = "Syncfusion";
            lineMeasureAnnot.Subject                = "LineAnnotation";
            lineMeasureAnnot.ModifiedDate           = new DateTime(2015, 1, 18);
            lineMeasureAnnot.Unit                   = PdfMeasurementUnit.Inch;
            lineMeasureAnnot.lineBorder.BorderWidth = 2;
            lineMeasureAnnot.Font                   = new PdfStandardFont(PdfFontFamily.Helvetica, 10f, PdfFontStyle.Regular);
            lineMeasureAnnot.Color                  = red;
            if (flatten.IsChecked == true)
            {
                lineMeasureAnnot.Flatten = true;
            }
            page.Graphics.DrawString("Line Measurement Annotation", font, brush, new PointF(370, 410));
            page.Annotations.Add(lineMeasureAnnot);

            //Saving the document
            MemoryStream SourceStream = new MemoryStream();

            document.Save(SourceStream);
            document.Close(true);

            //Loading and flatten the  annotation
            PdfLoadedDocument lDoc  = new PdfLoadedDocument(SourceStream);
            PdfLoadedPage     lpage = lDoc.Pages[0] as PdfLoadedPage;

            if (flatten.IsChecked == true)
            {
                lpage.Annotations.Flatten = true;
            }
            MemoryStream stream = new MemoryStream();
            await lDoc.SaveAsync(stream);

            lDoc.Close(true);

            Save(stream, "Sample.pdf");
        }