/// <summary> /// Write all non-empty layouts of a model into a multi-page PDF file. /// </summary> /// <remarks> /// AutoCAD is creating some layouts by default, even if they don't contain any new data. /// CadLib only uses the layouts really contained in the file. /// </remarks> /// <param name="model">DXF model to write</param> /// <param name="paperSize">targeted paper size</param> /// <param name="margin">margin around model print in inches</param> /// <param name="outfile">path of PDF output file</param> /// <param name="embedFonts">embed fonts into PDF?</param> /// <param name="lineWeight">default line weight in 100th of mm</param> public static void WriteLayoutsToPdf(DxfModel model, PaperSize paperSize, float margin, string outfile, bool embedFonts, short lineWeight) { using (Stream stream = File.Create(outfile)) { PdfExporter pdfGraphics = new PdfExporter(stream); foreach (var layout in model.Layouts) { BoundsCalculator boundsCalculator = new BoundsCalculator(); if (layout.PaperSpace) { boundsCalculator.GetBounds(model, layout); } else { // model space viewports are often broken, so output model directly boundsCalculator.GetBounds(model); } Bounds3D bounds = boundsCalculator.Bounds; if (!bounds.Initialized || bounds.Delta == Vector3D.Zero) { // if bounds are empty nothing is displayed, so skip this page continue; } // Lengths in inches. float pageWidth = paperSize.Width/100f; float pageHeight = paperSize.Height/100f; // Scale and transform such that its fits max width/height // and the top middle of the cad drawing will match the // top middle of the pdf page. // The transform transforms to pdf pixels. double scaling; Matrix4D to2DTransform = DxfUtil.GetScaleTransform( bounds.Corner1, bounds.Corner2, new Point3D(bounds.Center.X, bounds.Corner2.Y, 0d), new Point3D(new Vector3D(margin, margin, 0d)* PdfExporter.InchToPixel), new Point3D( new Vector3D(pageWidth - margin, pageHeight - margin, 0d)* PdfExporter.InchToPixel), new Point3D( new Vector3D(pageWidth/2d, pageHeight - margin, 0d)* PdfExporter.InchToPixel), out scaling); pdfGraphics.ExportLayers = true; pdfGraphics.UseMultipleLayers = false; pdfGraphics.EmbedFonts = embedFonts; GraphicsConfig config = (GraphicsConfig)GraphicsConfig.AcadLikeWithWhiteBackground.Clone(); config.TryDrawingTextAsText = embedFonts; config.DefaultLineWeight = lineWeight; if (layout.PaperSpace) { pdfGraphics.DrawPage( model, config, to2DTransform, scaling, layout, null, paperSize); } else { // special handle model space, see comment above pdfGraphics.DrawPage( model, config, to2DTransform, paperSize); } } pdfGraphics.EndDocument(); } } /// <summary> /// Write the default layout of a model to a PDF file. /// </summary> /// <remarks> /// Depending on the model's setting this either writes the active layout or the model space to the PDF. /// Model/layout are scaled to fit the paper inside the margin. /// This code will center the model/layout on top of the page. /// </remarks> /// <param name="model">DXF model to write</param> /// <param name="paperSize">targeted paper size</param> /// <param name="margin">margin around model print in inches</param> /// <param name="outfile">path of PDF output file</param> /// <param name="embedFonts">embed fonts into PDF?</param> /// <param name="lineWeight">default line weight in 100th of mm</param> public static void WriteDefaultLayoutToPdf(DxfModel model, PaperSize paperSize, float margin, string outfile, bool embedFonts, short lineWeight) { DxfLayout layout = model.Header.ShowModelSpace ? null : model.ActiveLayout; if (layout != null) { // output layout WriteLayoutToPdf(model, layout, paperSize, margin, outfile, embedFonts, lineWeight); } else { // output model WriteModelToPdf(model, paperSize, margin, outfile, embedFonts, lineWeight); } } /// <summary> /// Write a complete model to a PDF file. /// </summary> /// <remarks> /// The model is scaled to fit the paper inside the margin. /// This code will center the model on top of the page, and use lineweight 0 /// </remarks> /// <param name="model">DXF model to write</param> /// <param name="paperSize">targeted paper size</param> /// <param name="margin">margin around model print in inches</param> /// <param name="outfile">path of PDF output file</param> /// <param name="embedFonts">embed fonts into PDF?</param> public static void WriteModelToPdf(DxfModel model, PaperSize paperSize, float margin, string outfile, bool embedFonts) { WriteModelToPdf(model, paperSize, margin, outfile, embedFonts, 0); } /// <summary> /// Write a complete model to a PDF file. /// </summary> /// <remarks> /// The model is scaled to fit the paper inside the margin. /// This code will center the model on top of the page. /// </remarks> /// <param name="model">DXF model to write</param> /// <param name="paperSize">targeted paper size</param> /// <param name="margin">margin around model print in inches</param> /// <param name="outfile">path of PDF output file</param> /// <param name="embedFonts">embed fonts into PDF?</param> /// <param name="lineWeight">default line weight in 100th of mm</param> public static void WriteModelToPdf(DxfModel model, PaperSize paperSize, float margin, string outfile, bool embedFonts, short lineWeight) { BoundsCalculator boundsCalculator = new BoundsCalculator(); boundsCalculator.GetBounds(model); Bounds3D bounds = boundsCalculator.Bounds; // Lengths in inches. float pageWidth = paperSize.Width / 100f; float pageHeight = paperSize.Height / 100f; // Scale and transform such that its fits max width/height // and the top middle of the cad drawing will match the // top middle of the pdf page. // The transform transforms to pdf pixels. double scaling; Matrix4D to2DTransform = DxfUtil.GetScaleTransform( bounds.Min, // bottom left corner of model bounds.Max, // top right corner of model new Point3D(bounds.Center.X, bounds.Max.Y, 0d), // top center of model new Point3D(new Vector3D(margin, margin, 0d) * PdfExporter.InchToPixel), // bottom left corner of page new Point3D(new Vector3D(pageWidth - margin, pageHeight - margin, 0d) * PdfExporter.InchToPixel), // top right corner of page new Point3D(new Vector3D(pageWidth / 2d, pageHeight - margin, 0d) * PdfExporter.InchToPixel), // top center of page out scaling ); using (Stream stream = File.Create(outfile)) { PdfExporter pdfGraphics = new PdfExporter(stream); pdfGraphics.ExportLayers = true; pdfGraphics.UseMultipleLayers = false; pdfGraphics.EmbedFonts = embedFonts; GraphicsConfig config = (GraphicsConfig)GraphicsConfig.AcadLikeWithWhiteBackground.Clone(); config.TryDrawingTextAsText = embedFonts; config.DefaultLineWeight = lineWeight; pdfGraphics.DrawPage( model, config, to2DTransform, scaling, null, null, paperSize ); pdfGraphics.EndDocument(); } } /// <summary> /// Write a layout to a PDF file. /// </summary> /// <remarks> /// The layout is scaled to fit the paper inside the margin. /// This code will center the layout on top of the page. /// </remarks> /// <param name="model">DXF model to write</param> /// <param name="layout">DXF layout to write</param> /// <param name="paperSize">targeted paper size</param> /// <param name="margin">margin around model print in inches</param> /// <param name="outfile">path of PDF output file</param> /// <param name="embedFonts">embed fonts into PDF?</param> /// <param name="lineWeight">default line weight in 100th of mm</param> public static void WriteLayoutToPdf(DxfModel model, DxfLayout layout, PaperSize paperSize, float margin, string outfile, bool embedFonts, short lineWeight) { BoundsCalculator boundsCalculator = new BoundsCalculator(); boundsCalculator.GetBounds(model, layout); Bounds3D bounds = boundsCalculator.Bounds; // Lengths in inches. float pageWidth = paperSize.Width / 100f; float pageHeight = paperSize.Height / 100f; // Scale and transform such that its fits max width/height // and the top left middle of the cad drawing will match the // top middle of the pdf page. // The transform transforms to pdf pixels. double scaling; Matrix4D to2DTransform = DxfUtil.GetScaleTransform( bounds.Min, // bottom left corner of layout bounds.Max, // top right corner of layout new Point3D(bounds.Center.X, bounds.Max.Y, 0d), // top center of layout new Point3D(new Vector3D(margin, margin, 0d) * PdfExporter.InchToPixel), // bottom left corner of page new Point3D(new Vector3D(pageWidth - margin, pageHeight - margin, 0d) * PdfExporter.InchToPixel), // top right corner of page new Point3D(new Vector3D(pageWidth / 2d, pageHeight - margin, 0d) * PdfExporter.InchToPixel), // top center of page out scaling ); using (Stream stream = File.Create(outfile)) { PdfExporter pdfGraphics = new PdfExporter(stream); pdfGraphics.EmbedFonts = embedFonts; GraphicsConfig config = new GraphicsConfig(Color.White, true); config.TryDrawingTextAsText = embedFonts; config.DefaultLineWeight = lineWeight; pdfGraphics.DrawPage( model, config, to2DTransform, scaling, layout, null, paperSize ); pdfGraphics.EndDocument(); } }

string papa = @"Y:\dxf\wout\incoming\2015\20150106_xref\dwg\papa.dwg"; DxfModel model = DwgReader.Read(papa); IList<DxfBlock> missingReferences; model.LoadExternalReferences(out missingReferences); PaperSize paperSize = PaperSizes.GetPaperSize(PaperKind.A4Rotated); WriteDefaultLayoutToPdf(model, paperSize, 0.5f, papa + ".pdf", true, 0);

pdfGraphics.PackContent = false;