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PDFsharp Sample: Preview
Modified on 2015/09/14 10:22
by
Thomas Hövel
Categorized as
PDFsharp Samples
,
Samples
{s:navigationPrevUpNext|PageSizes-sample|PDFsharpSamples|PrivateFonts-sample} This sample shows how to render graphics in both a preview and a PDF document. ==PDF Output File== See the PDF file created by this sample: {s:PdfLink|Preview-sample%2fPreview_output.pdf|output.pdf} (61 kB) ==Screen Shots== Here are the sample screen shots (application window (left) and PDF file (right)): {s:ImageThumbLink|Screen shot of the application window|Preview-sample%2fPreviewAppth.png|Preview-sample%2fPreviewApp.png} {s:ImageThumbLink|Screen shot of the PDF output|Preview-sample%2fPreviewth.png|Preview-sample%2fPreview.png} The left screen shot shows a placeholder for the embedded PDF document because Windows cannot render PDF. ==Source Code== This is the source code of the Render method that is called for screen, PDF, and printer output: {s:beginCsharp} XRect rect; XPen pen; double x = 50, y = 100; XFont fontH1 = new XFont("Times", 18, XFontStyle.Bold); XFont font = new XFont("Times", 12); XFont fontItalic = new XFont("Times", 12, XFontStyle.BoldItalic); double ls = font.GetHeight(gfx); // Draw some text gfx.DrawString("Create PDF on the fly with PDFsharp", fontH1, XBrushes.Black, x, x); gfx.DrawString("With PDFsharp you can use the same code to draw graphic, " + "text and images on different targets.", font, XBrushes.Black, x, y); y += ls; gfx.DrawString("The object used for drawing is the XGraphics object.", font, XBrushes.Black, x, y); y += 2 * ls; // Draw an arc pen = new XPen(XColors.Red, 4); pen.DashStyle = XDashStyle.Dash; gfx.DrawArc(pen, x + 20, y, 100, 60, 150, 120); // Draw a star XGraphicsState gs = gfx.Save(); gfx.TranslateTransform(x + 140, y + 30); for (int idx = 0; idx < 360; idx += 10) { gfx.RotateTransform(10); gfx.DrawLine(XPens.DarkGreen, 0, 0, 30, 0); } gfx.Restore(gs); // Draw a rounded rectangle rect = new XRect(x + 230, y, 100, 60); pen = new XPen(XColors.DarkBlue, 2.5); XColor color1 = XColor.FromKnownColor(KnownColor.DarkBlue); XColor color2 = XColors.Red; XLinearGradientBrush lbrush = new XLinearGradientBrush(rect, color1, color2, XLinearGradientMode.Vertical); gfx.DrawRoundedRectangle(pen, lbrush, rect, new XSize(10, 10)); // Draw a pie pen = new XPen(XColors.DarkOrange, 1.5); pen.DashStyle = XDashStyle.Dot; gfx.DrawPie(pen, XBrushes.Blue, x + 360, y, 100, 60, -130, 135); // Draw some more text y += 60 + 2 * ls; gfx.DrawString("With XGraphics you can draw on a PDF page as well as " + "on any System.Drawing.Graphics object.", font, XBrushes.Black, x, y); y += ls * 1.1; gfx.DrawString("Use the same code to", font, XBrushes.Black, x, y); x += 10; y += ls * 1.1; gfx.DrawString("• draw on a newly created PDF page", font, XBrushes.Black, x, y); y += ls; gfx.DrawString("• draw above or beneath of the content of an existing PDF page", font, XBrushes.Black, x, y); y += ls; gfx.DrawString("• draw in a window", font, XBrushes.Black, x, y); y += ls; gfx.DrawString("• draw on a printer", font, XBrushes.Black, x, y); y += ls; gfx.DrawString("• draw in a bitmap image", font, XBrushes.Black, x, y); x -= 10; y += ls * 1.1; gfx.DrawString("You can also import an existing PDF page and use it like " + "an image, e.g. draw it on another PDF page.", font, XBrushes.Black, x, y); y += ls * 1.1 * 2; gfx.DrawString("Imported PDF pages are neither drawn nor printed; create a " + "PDF file to see or print them!", fontItalic, XBrushes.Firebrick, x, y); y += ls * 1.1; gfx.DrawString("Below this text is a PDF form that will be visible when " + "viewed or printed with a PDF viewer.", fontItalic, XBrushes.Firebrick, x, y); y += ls * 1.1; XGraphicsState state = gfx.Save(); XRect rcImage = new XRect(100, y, 100, 100 * Math.Sqrt(2)); gfx.DrawRectangle(XBrushes.Snow, rcImage); gfx.DrawImage(XPdfForm.FromFile("../../../../../PDFs/SomeLayout.pdf"), rcImage); gfx.Restore(state); {s:endCsharp} {s:sampleSourceCode}
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