Пример #1
0
        private void DrawPath(PdfPageBase page)
        {
            PointF[] points = new PointF[5];
            for (int i = 0; i < points.Length; i++)
            {
                float x = (float)Math.Cos(i * 2 * Math.PI / 5);
                float y = (float)Math.Sin(i * 2 * Math.PI / 5);
                points[i] = new PointF(x, y);
            }
            PdfPath path = new PdfPath();

            path.AddLine(points[2], points[0]);
            path.AddLine(points[0], points[3]);
            path.AddLine(points[3], points[1]);
            path.AddLine(points[1], points[4]);
            path.AddLine(points[4], points[2]);

            //save graphics state
            PdfGraphicsState state  = page.Canvas.Save();
            PdfPen           pen    = new PdfPen(Color.DeepSkyBlue, 0.02f);
            PdfBrush         brush1 = new PdfSolidBrush(Color.CadetBlue);

            page.Canvas.ScaleTransform(50f, 50f);
            page.Canvas.TranslateTransform(5f, 1.2f);
            page.Canvas.DrawPath(pen, path);

            page.Canvas.TranslateTransform(2f, 0f);
            path.FillMode = PdfFillMode.Alternate;
            page.Canvas.DrawPath(pen, brush1, path);

            page.Canvas.TranslateTransform(2f, 0f);
            path.FillMode = PdfFillMode.Winding;
            page.Canvas.DrawPath(pen, brush1, path);

            PdfLinearGradientBrush brush2 = new PdfLinearGradientBrush(new PointF(-2, 0), new PointF(2, 0), Color.Red, Color.Blue);

            page.Canvas.TranslateTransform(-4f, 2f);
            path.FillMode = PdfFillMode.Alternate;
            page.Canvas.DrawPath(pen, brush2, path);

            PdfRadialGradientBrush brush3 = new PdfRadialGradientBrush(new PointF(0f, 0f), 0f, new PointF(0f, 0f), 1f, Color.Red, Color.Blue);

            page.Canvas.TranslateTransform(2f, 0f);
            path.FillMode = PdfFillMode.Winding;
            page.Canvas.DrawPath(pen, brush3, path);

            PdfTilingBrush brush4 = new PdfTilingBrush(new RectangleF(0, 0, 4f, 4f));

            brush4.Graphics.DrawRectangle(brush2, 0, 0, 4f, 4f);

            page.Canvas.TranslateTransform(2f, 0f);
            path.FillMode = PdfFillMode.Winding;
            page.Canvas.DrawPath(pen, brush4, path);

            //restor graphics
            page.Canvas.Restore(state);
        }
Пример #2
0
        private void DrawPath(PdfPageBase page)
        {
            PointF[] points = new PointF[5];
            for (int i = 0; i < points.Length; i++)
            {
                float x = (float)Math.Cos(i * 2 * Math.PI / 5);
                float y = (float)Math.Sin(i * 2 * Math.PI / 5);
                points[i] = new PointF(x, y);
            }
            PdfPath path = new PdfPath();
            path.AddLine(points[2], points[0]);
            path.AddLine(points[0], points[3]);
            path.AddLine(points[3], points[1]);
            path.AddLine(points[1], points[4]);
            path.AddLine(points[4], points[2]);

            //save graphics state
            PdfGraphicsState state = page.Canvas.Save();
            PdfPen pen = new PdfPen(Color.DeepSkyBlue, 0.02f);
            PdfBrush brush1 = new PdfSolidBrush(Color.CadetBlue);         

            page.Canvas.ScaleTransform(50f, 50f);
            page.Canvas.TranslateTransform(5f, 1.2f);
            page.Canvas.DrawPath(pen, path);

            page.Canvas.TranslateTransform(2f, 0f);
            path.FillMode = PdfFillMode.Alternate;
            page.Canvas.DrawPath(pen, brush1, path);

            page.Canvas.TranslateTransform(2f, 0f);
            path.FillMode = PdfFillMode.Winding;
            page.Canvas.DrawPath(pen, brush1, path);

            PdfLinearGradientBrush brush2 = new PdfLinearGradientBrush(new PointF(-2, 0), new PointF(2, 0), Color.Red, Color.Blue);
            page.Canvas.TranslateTransform(-4f, 2f);
            path.FillMode = PdfFillMode.Alternate;
            page.Canvas.DrawPath(pen, brush2, path);

            PdfRadialGradientBrush brush3 = new PdfRadialGradientBrush(new PointF(0f, 0f), 0f, new PointF(0f, 0f), 1f, Color.Red, Color.Blue);
            page.Canvas.TranslateTransform(2f, 0f);
            path.FillMode = PdfFillMode.Winding;
            page.Canvas.DrawPath(pen, brush3, path);

            PdfTilingBrush brush4 = new PdfTilingBrush(new RectangleF(0, 0, 4f, 4f));
            brush4.Graphics.DrawRectangle(brush2, 0, 0, 4f, 4f);

            page.Canvas.TranslateTransform(2f, 0f);
            path.FillMode = PdfFillMode.Winding;
            page.Canvas.DrawPath(pen, brush4, path);

            //restor graphics
            page.Canvas.Restore(state);
        }
        public ActionResult DrawingShapes(string InsideBrowser)
        {
            // Create a new PDF document.
            PdfDocument doc = new PdfDocument();
            int         i;
            // Create a new page.
            PdfPage page = doc.Pages.Add();
            // Obtain PdfGraphics object.
            PdfGraphics g    = page.Graphics;
            PdfFont     font = new PdfStandardFont(PdfFontFamily.Helvetica, 14, PdfFontStyle.Bold);

            #region Polygon
            PdfPen pen = new PdfPen(Color.Black);
            pen.Width = 3;
            PointF p1 = new PointF(05, 10);
            PointF p2 = new PointF(05, 10);
            PointF p3 = new PointF(60, 70);
            PointF p4 = new PointF(40, 70);

            PointF[] points = { p1, p2, p3, p4 };

            int pointNum = 16;
            points = new PointF[pointNum];
            double       f      = 360.0 / pointNum * Math.PI / 180.0;
            const double r      = 100;
            PointF       center = new PointF(140, 140);

            for (i = 0; i < pointNum; ++i)
            {
                PointF p     = new PointF();
                double theta = i * f;

                p.Y = (float)(Math.Sin(theta) * r + center.Y);
                p.X = (float)(Math.Cos(theta) * r + center.X);

                points[i] = p;
            }

            PdfSolidBrush brush = new PdfSolidBrush(Color.Green);
            pen.Color    = Color.Brown;
            pen.Width    = 10;
            pen.LineJoin = PdfLineJoin.Round;
            g.DrawString("Polygon", font, PdfBrushes.DarkBlue, new PointF(50, 0));
            g.DrawPolygon(pen, brush, points);

            #endregion

            #region  Pie

            RectangleF rect = new RectangleF(200, 50, 200, 200);
            brush.Color = Color.Green;
            pen.Color   = Color.Brown;
            pen.Width   = 10;

            rect.Location = new PointF(20, 280);
            pen.LineJoin  = PdfLineJoin.Round;
            g.DrawString("Pie shape", font, PdfBrushes.DarkBlue, new PointF(50, 250));
            g.DrawPie(pen, brush, rect, 180, 60);
            g.DrawPie(pen, brush, rect, 360 - 60, 60);
            g.DrawPie(pen, brush, rect, 60, 60);

            #endregion

            #region Arc

            g.DrawString("Arcs", font, PdfBrushes.DarkBlue, new PointF(330, 0));
            pen         = new PdfPen(Color.Black);
            pen.Width   = 11;
            pen.LineCap = PdfLineCap.Round;
            pen.Color   = Color.Brown;
            rect        = new RectangleF(310, 40, 200, 200);
            g.DrawArc(pen, rect, 0, 90);

            pen.Color = Color.DarkGreen;
            rect.X   -= 10;
            g.DrawArc(pen, rect, 90, 90);

            pen.Color = Color.Brown;
            rect.Y   -= 10;
            g.DrawArc(pen, rect, 180, 90);

            pen.Color = Color.DarkGreen;
            rect.X   += 10;
            g.DrawArc(pen, rect, 270, 90);

            #endregion

            #region Rectangle
            rect        = new RectangleF(310, 280, 200, 100);
            brush.Color = Color.Green;
            pen.Color   = Color.Brown;
            g.DrawString("Simple Rectangle", font, PdfBrushes.DarkBlue, new PointF(310, 255));
            g.DrawRectangle(pen, brush, rect);
            #endregion

            #region ellipse
            pen  = new PdfPen(Color.Black);
            rect = new RectangleF(270, 400, 160, 1000);
            g.DrawString("Shape with pagination", font, PdfBrushes.DarkBlue, new PointF(300, 390));
            PdfEllipse      ellipse = new PdfEllipse(rect);
            PdfLayoutFormat format  = new PdfLayoutFormat();
            format.Break  = PdfLayoutBreakType.FitPage;
            format.Layout = PdfLayoutType.Paginate;
            ellipse.Brush = PdfBrushes.Brown;
            ellipse.Draw(page, 20, 20, format);

            brush         = new PdfSolidBrush(Color.Black);
            ellipse.Brush = PdfBrushes.DarkGreen;
            ellipse.Draw(page, 40, 40, format);

            #endregion

            #region Transaparency

            page = doc.Pages[1];
            g    = page.Graphics;
            g.DrawString("Transparent Rectangles", font, PdfBrushes.DarkBlue, new PointF(50, 80));
            PdfBrush gBrush;
            rect = new RectangleF(10, 150, 100, 100);

            pen    = new PdfPen(Color.Black);
            gBrush = new PdfSolidBrush(Color.DarkGreen);

            g.DrawRectangle(pen, gBrush, rect);
            gBrush  = new PdfSolidBrush(Color.Brown);
            rect.X += 20;
            rect.Y += 20;
            pen     = new PdfPen(Color.Brown);
            g.SetTransparency(0.7f);
            g.DrawRectangle(pen, gBrush, rect);

            rect.X += 20;
            rect.Y += 20;
            gBrush  = new PdfLinearGradientBrush(rect, Color.DarkGreen, Color.Brown, PdfLinearGradientMode.BackwardDiagonal);
            g.SetTransparency(0.5f);
            g.DrawRectangle(pen, gBrush, rect);

            rect.X += 20;
            rect.Y += 20;
            pen     = new PdfPen(Color.Blue);
            gBrush  = new PdfSolidBrush(Color.Gray);
            g.SetTransparency(0.25f);
            g.DrawRectangle(pen, gBrush, rect);

            rect.X += 20;
            rect.Y += 20;
            pen     = new PdfPen(Color.Black);
            gBrush  = new PdfSolidBrush(Color.Green);
            g.SetTransparency(0.1f);
            g.DrawRectangle(pen, gBrush, rect);

            #endregion

            #region Rectangle with Color space



            PointF location = new PointF(10, 50);
            page = doc.Pages.Add();
            g    = page.Graphics;

            doc.ColorSpace = (PdfColorSpace)i;

            // SolidBrush
            gBrush = new PdfSolidBrush(Color.Red);
            DrawRectangles(location, g, font, gBrush, pen, doc);

            // LinearGradient
            location = new PointF(180, 50);

            PointF point2 = location;

            point2.X += 180;
            gBrush    = new PdfLinearGradientBrush(location, point2, Color.Blue, Color.Red);
            DrawRectangles(location, g, font, gBrush, pen, doc);

            // Raidal Gradient
            location = new PointF(360, 50);
            point2   = location;

            point2 = new PointF(location.X + 50, location.Y + 50);
            //point2.Y += 250;
            //point2.X = 150;
            gBrush = new PdfRadialGradientBrush(point2, 0, point2, 100, Color.Blue, Color.Red);
            (gBrush as PdfRadialGradientBrush).Extend = PdfExtend.Both;
            DrawRectangles(location, g, font, gBrush, pen, doc);

            g.DrawString("Rectangle with color spaces", font, PdfBrushes.DarkBlue, new PointF(150, 0));
            #endregion

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

            doc.Save(ms);

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

            //Close the PDF document.
            doc.Close(true);

            //Download the PDF document in the browser.
            FileStreamResult fileStreamResult = new FileStreamResult(ms, "application/pdf");
            fileStreamResult.FileDownloadName = "Shapes.pdf";
            return(fileStreamResult);
        }
Пример #4
0
        private void button1_Click(object sender, EventArgs e)
        {
            //Create a pdf document
            PdfDocument doc = new PdfDocument();

            doc.LoadFromFile(@"..\..\..\..\..\..\Data\Font.pdf");
            //Create one page
            PdfPageBase page = doc.Pages[0];

            //Draw the text
            float  l      = page.Canvas.ClientSize.Width / 2;
            PointF center = new PointF(l, l);
            float  r      = (float)Math.Sqrt(2 * l * l);
            PdfRadialGradientBrush brush
                = new PdfRadialGradientBrush(center, 0f, center, r, Color.Blue, Color.Red);

            PdfFontFamily[] fontFamilies
                = (PdfFontFamily[])Enum.GetValues(typeof(PdfFontFamily));
            float y = 200;

            for (int i = 0; i < fontFamilies.Length; i++)
            {
                String text = String.Format("Font Family: {0}", fontFamilies[i]);
                float  x1   = 40;
                y = 200 + i * 16;
                PdfFont font1 = new PdfFont(PdfFontFamily.Courier, 14f);
                PdfFont font2 = new PdfFont(fontFamilies[i], 14f);
                float   x2    = x1 + 10 + font1.MeasureString(text).Width;
                page.Canvas.DrawString(text, font1, brush, x1, y);
                page.Canvas.DrawString(text, font2, brush, x2, y);
            }

            //True type font - embedded
            System.Drawing.Font font         = new System.Drawing.Font("Arial", 15f, FontStyle.Bold);
            PdfTrueTypeFont     trueTypeFont = new PdfTrueTypeFont(font);

            page.Canvas.DrawString("Font Family: Arial - Embedded", trueTypeFont, brush, 40, (y = y + 26f));

            //Right to left
            String arabicText
                = "\u0627\u0644\u0630\u0647\u0627\u0628\u0021\u0020"
                  + "\u0628\u062F\u0648\u0631\u0647\u0020\u062D\u0648\u0644\u0647\u0627\u0021\u0020"
                  + "\u0627\u0644\u0630\u0647\u0627\u0628\u0021\u0020"
                  + "\u0627\u0644\u0630\u0647\u0627\u0628\u0021\u0020"
                  + "\u0627\u0644\u0630\u0647\u0627\u0628\u0021";

            trueTypeFont = new PdfTrueTypeFont(font, true);
            RectangleF      rctg   = new RectangleF(new PointF(40, (y = y + 26f)), page.Canvas.ClientSize);
            PdfStringFormat format = new PdfStringFormat(PdfTextAlignment.Right);

            format.RightToLeft = true;
            page.Canvas.DrawString(arabicText, trueTypeFont, brush, rctg, format);

            //True type font - not embedded
            font         = new System.Drawing.Font("Batang", 14f, FontStyle.Italic);
            trueTypeFont = new PdfTrueTypeFont(font);
            page.Canvas.DrawString("Font Family: Batang - Not Embedded", trueTypeFont, brush, 40, (y = y + 16f));

            //Font file
            String fontFileName = @"..\..\..\..\..\..\Data\Hawaii_Killer.ttf";

            trueTypeFont = new PdfTrueTypeFont(fontFileName, 20f);
            page.Canvas.DrawString("Hawaii Killer Font", trueTypeFont, brush, 40, (y = y + 36f));
            page.Canvas.DrawString("Hawaii Killer Font, from http://www.1001freefonts.com", new PdfFont(PdfFontFamily.Helvetica, 8f), brush, 40, (y = y + 40f));

            //Cjk font
            PdfCjkStandardFont cjkFont = new PdfCjkStandardFont(PdfCjkFontFamily.MonotypeHeiMedium, 14f);

            page.Canvas.DrawString("How to say 'Font' in Chinese? \u5B57\u4F53", cjkFont, brush, 40, (y = y + 36f));

            cjkFont = new PdfCjkStandardFont(PdfCjkFontFamily.HanyangSystemsGothicMedium, 14f);
            page.Canvas.DrawString("How to say 'Font' in Japanese? \u30D5\u30A9\u30F3\u30C8", cjkFont, brush, 40, (y = y + 36f));

            cjkFont = new PdfCjkStandardFont(PdfCjkFontFamily.HanyangSystemsShinMyeongJoMedium, 14f);
            page.Canvas.DrawString("How to say 'Font' in Korean? \uAE00\uAF34", cjkFont, brush, 40, (y = y + 36f));

            //Save the document
            doc.SaveToFile("Font.pdf");
            doc.Close();

            //Launch the Pdf file
            PDFDocumentViewer("Font.pdf");
        }
        public ActionResult DrawingShapes(string InsideBrowser)
        {
            // Create a new PDF document.
            PdfDocument doc = new PdfDocument();
            int         i;
            // Create a new page.
            PdfPage page = doc.Pages.Add();
            // Obtain PdfGraphics object.
            PdfGraphics g    = page.Graphics;
            PdfFont     font = new PdfStandardFont(PdfFontFamily.Helvetica, 14, PdfFontStyle.Bold);

            #region Polygon
            PdfPen pen = new PdfPen(Color.Black);
            pen.Width = 3;
            PointF p1 = new PointF(05, 10);
            PointF p2 = new PointF(05, 10);
            PointF p3 = new PointF(60, 70);
            PointF p4 = new PointF(40, 70);

            PointF[] points = { p1, p2, p3, p4 };

            int pointNum = 16;
            points = new PointF[pointNum];
            double       f      = 360.0 / pointNum * Math.PI / 180.0;
            const double r      = 100;
            PointF       center = new PointF(140, 140);

            for (i = 0; i < pointNum; ++i)
            {
                PointF p     = new PointF();
                double theta = i * f;

                p.Y = (float)(Math.Sin(theta) * r + center.Y);
                p.X = (float)(Math.Cos(theta) * r + center.X);

                points[i] = p;
            }

            PdfSolidBrush brush = new PdfSolidBrush(Color.Green);
            pen.Color    = Color.Brown;
            pen.Width    = 10;
            pen.LineJoin = PdfLineJoin.Round;
            g.DrawString("Polygon", font, PdfBrushes.DarkBlue, new PointF(50, 0));
            g.DrawPolygon(pen, brush, points);

            #endregion

            #region  Pie

            RectangleF rect = new RectangleF(200, 50, 200, 200);
            brush.Color = Color.Green;
            pen.Color   = Color.Brown;
            pen.Width   = 10;

            rect.Location = new PointF(20, 280);
            pen.LineJoin  = PdfLineJoin.Round;
            g.DrawString("Pie shape", font, PdfBrushes.DarkBlue, new PointF(50, 250));
            g.DrawPie(pen, brush, rect, 180, 60);
            g.DrawPie(pen, brush, rect, 360 - 60, 60);
            g.DrawPie(pen, brush, rect, 60, 60);

            #endregion

            #region Arc

            g.DrawString("Arcs", font, PdfBrushes.DarkBlue, new PointF(330, 0));
            pen         = new PdfPen(Color.Black);
            pen.Width   = 11;
            pen.LineCap = PdfLineCap.Round;
            pen.Color   = Color.Brown;
            rect        = new RectangleF(310, 40, 200, 200);
            g.DrawArc(pen, rect, 0, 90);

            pen.Color = Color.DarkGreen;
            rect.X   -= 10;
            g.DrawArc(pen, rect, 90, 90);

            pen.Color = Color.Brown;
            rect.Y   -= 10;
            g.DrawArc(pen, rect, 180, 90);

            pen.Color = Color.DarkGreen;
            rect.X   += 10;
            g.DrawArc(pen, rect, 270, 90);

            #endregion

            #region Rectangle
            rect        = new RectangleF(310, 280, 200, 100);
            brush.Color = Color.Green;
            pen.Color   = Color.Brown;
            g.DrawString("Simple Rectangle", font, PdfBrushes.DarkBlue, new PointF(310, 255));
            g.DrawRectangle(pen, brush, rect);
            #endregion

            #region ellipse

            // Draw a simple ellipse.
            pen  = new PdfPen(Color.Black);
            rect = new RectangleF(80, 520, 100, 200);
            //page = doc.Pages[0];
            //g = page.Graphics;
            PdfLinearGradientBrush lgBrush = new PdfLinearGradientBrush(rect, Color.DarkGreen, Color.White, 90);

            brush       = new PdfSolidBrush(Color.Black);
            brush.Color = Color.DarkGreen;
            pen.Color   = Color.Brown;
            pen.Width   = 10.0f;
            g.DrawString("Ellipse with Gradient", font, PdfBrushes.DarkBlue, new PointF(50, 490));
            g.DrawEllipse(pen, lgBrush, rect);


            rect = new RectangleF(270, 400, 160, 1000);
            g.DrawString("Shape with pagination", font, PdfBrushes.DarkBlue, new PointF(300, 390));
            PdfEllipse      ellipse = new PdfEllipse(rect);
            PdfLayoutFormat format  = new PdfLayoutFormat();
            format.Break  = PdfLayoutBreakType.FitPage;
            format.Layout = PdfLayoutType.Paginate;
            ellipse.Brush = PdfBrushes.Brown;
            ellipse.Draw(page, 20, 20, format);

            brush         = new PdfSolidBrush(Color.Black);
            ellipse.Brush = PdfBrushes.DarkGreen;
            ellipse.Draw(page, 40, 40, format);

            #endregion

            #region Transaparency

            page = doc.Pages[1];
            g    = page.Graphics;
            g.DrawString("Transparent Rectangles", font, PdfBrushes.DarkBlue, new PointF(50, 80));
            PdfBrush gBrush;
            rect = new RectangleF(10, 150, 100, 100);

            pen    = new PdfPen(Color.Black);
            gBrush = new PdfSolidBrush(Color.DarkGreen);

            g.DrawRectangle(pen, gBrush, rect);
            gBrush  = new PdfSolidBrush(Color.Brown);
            rect.X += 20;
            rect.Y += 20;
            pen     = new PdfPen(Color.Brown);
            g.SetTransparency(0.7f);
            g.DrawRectangle(pen, gBrush, rect);

            rect.X += 20;
            rect.Y += 20;
            gBrush  = new PdfLinearGradientBrush(rect, Color.DarkGreen, Color.Brown, PdfLinearGradientMode.BackwardDiagonal);
            g.SetTransparency(0.5f);
            g.DrawRectangle(pen, gBrush, rect);

            rect.X += 20;
            rect.Y += 20;
            pen     = new PdfPen(Color.Blue);
            gBrush  = new PdfSolidBrush(Color.Gray);
            g.SetTransparency(0.25f);
            g.DrawRectangle(pen, gBrush, rect);

            rect.X += 20;
            rect.Y += 20;
            pen     = new PdfPen(Color.Black);
            gBrush  = new PdfSolidBrush(Color.Green);
            g.SetTransparency(0.1f);
            g.DrawRectangle(pen, gBrush, rect);

            #endregion

            #region Rectangle with Color space



            PointF location = new PointF(10, 50);
            page = doc.Pages.Add();
            g    = page.Graphics;

            doc.ColorSpace = (PdfColorSpace)i;

            // SolidBrush
            gBrush = new PdfSolidBrush(Color.Red);
            DrawRectangles(location, g, font, gBrush, pen, doc);

            // LinearGradient
            location = new PointF(180, 50);

            PointF point2 = location;

            point2.X += 100;
            gBrush    = new PdfLinearGradientBrush(location, point2, Color.Blue, Color.Red);
            DrawRectangles(location, g, font, gBrush, pen, doc);

            // Raidal Gradient
            location  = new PointF(360, 50);
            point2    = location;
            point2.Y += 250;
            point2.X  = 150;
            gBrush    = new PdfRadialGradientBrush(point2, 210, point2, 400, Color.Blue, Color.Red);
            (gBrush as PdfRadialGradientBrush).Extend = PdfExtend.End;
            DrawRectangles(location, g, font, gBrush, pen, doc);

            g.DrawString("Rectangle with color spaces", font, PdfBrushes.DarkBlue, new PointF(150, 0));
            #endregion
            //Stream the output to the browser.
            if (InsideBrowser == "Browser")
            {
                return(doc.ExportAsActionResult("sample.pdf", HttpContext.ApplicationInstance.Response, HttpReadType.Open));
            }
            else
            {
                return(doc.ExportAsActionResult("sample.pdf", HttpContext.ApplicationInstance.Response, HttpReadType.Save));
            }
        }
Пример #6
0
        private void button1_Click(object sender, EventArgs e)
        {
            //Create a pdf document.
            PdfDocument doc = new PdfDocument();            

            // Create one page
            PdfPageBase page = doc.Pages.Add();

            //Draw the text
            float l = page.Canvas.ClientSize.Width / 2;
            PointF center = new PointF(l, l);
            float r = (float)Math.Sqrt(2 * l * l);
            PdfRadialGradientBrush brush
                = new PdfRadialGradientBrush(center, 0f, center, r, Color.Blue, Color.Red);
            PdfFontFamily[] fontFamilies
                = (PdfFontFamily[])Enum.GetValues(typeof(PdfFontFamily));
            float y = 10;
            for(int i = 0; i < fontFamilies.Length; i++)
            {
                String text = String.Format("Font Family: {0}", fontFamilies[i]);
                float x1 = 0;
                y = 10 + i * 16;
                PdfFont font1 = new PdfFont(PdfFontFamily.Courier, 14f);
                PdfFont font2 = new PdfFont(fontFamilies[i], 14f);
                float x2 = x1 + 10 + font1.MeasureString(text).Width;
                page.Canvas.DrawString(text, font1, brush, x1, y);
                page.Canvas.DrawString(text, font2, brush, x2, y);
            }
            
            //true type font - embedded.
            System.Drawing.Font font = new System.Drawing.Font("Arial", 14f, FontStyle.Bold);
            PdfTrueTypeFont trueTypeFont = new PdfTrueTypeFont(font);
            page.Canvas.DrawString("Font Family: Arial - Embedded", trueTypeFont, brush, 0, (y = y + 16f));

            //right to left
            String arabicText
                = "\u0627\u0644\u0630\u0647\u0627\u0628\u0021\u0020"
                + "\u0628\u062F\u0648\u0631\u0647\u0020\u062D\u0648\u0644\u0647\u0627\u0021\u0020"
                + "\u0627\u0644\u0630\u0647\u0627\u0628\u0021\u0020"
                + "\u0627\u0644\u0630\u0647\u0627\u0628\u0021\u0020"
                + "\u0627\u0644\u0630\u0647\u0627\u0628\u0021";
            trueTypeFont = new PdfTrueTypeFont(font, true);
            RectangleF rctg = new RectangleF(new PointF(0, (y = y + 16f)), page.Canvas.ClientSize);
            PdfStringFormat format = new PdfStringFormat(PdfTextAlignment.Right);
            format.RightToLeft = true;
            page.Canvas.DrawString(arabicText, trueTypeFont, brush, rctg, format);

            //true type font - not embedded
            font = new System.Drawing.Font("Batang", 14f, FontStyle.Italic);
            trueTypeFont = new PdfTrueTypeFont(font);
            page.Canvas.DrawString("Font Family: Batang - Not Embedded", trueTypeFont, brush, 0, (y = y + 16f));

            //font file
            String fontFileName = @"..\..\..\..\..\..\Data\Hawaii_Killer.ttf";
            trueTypeFont = new PdfTrueTypeFont(fontFileName, 20f);
            page.Canvas.DrawString("Hawaii Killer Font", trueTypeFont, brush, 0, (y = y + 16f));
            page.Canvas.DrawString("Hawaii Killer Font, from http://www.1001freefonts.com", new PdfFont(PdfFontFamily.Helvetica, 8f), brush, 10, (y = y + 20f));

            //cjk font
            PdfCjkStandardFont cjkFont = new PdfCjkStandardFont(PdfCjkFontFamily.MonotypeHeiMedium, 14f);
            page.Canvas.DrawString("How to say 'Font' in Chinese? \u5B57\u4F53", cjkFont, brush, 0, (y = y + 16f));

            cjkFont = new PdfCjkStandardFont(PdfCjkFontFamily.HanyangSystemsGothicMedium, 14f);
            page.Canvas.DrawString("How to say 'Font' in Japanese? \u30D5\u30A9\u30F3\u30C8", cjkFont, brush, 0, (y = y + 16f));

            cjkFont = new PdfCjkStandardFont(PdfCjkFontFamily.HanyangSystemsShinMyeongJoMedium, 14f);
            page.Canvas.DrawString("How to say 'Font' in Korean? \uAE00\uAF34", cjkFont, brush, 0, (y = y + 16f));

            //Save pdf file.
            doc.SaveToFile("Font.pdf");
            doc.Close();

            //Launching the Pdf file.
            PDFDocumentViewer("Font.pdf");

        }