Code

GlyphRunDrawing gdr = drawing as GlyphRunDrawing;
                    GlyphTypeface typeface = null;

                    string str = "";

                    Rect incBox = Rect.Empty;
                    Rect alignBox = Rect.Empty;
                    System.Drawing.Font textFont = null;
                    System.Drawing.Brush textBrush;
					System.Drawing.StringFormat textFormat = new System.Drawing.StringFormat();
                    System.Drawing.FontStyle fst = 0;

                    if (gdr.GlyphRun != null)
                    {
                        typeface = gdr.GlyphRun.GlyphTypeface;
						textFormat.Alignment = System.Drawing.StringAlignment.Center;
						textFormat.LineAlignment = System.Drawing.StringAlignment.Center;

                        if (typeface != null)
                        {
							if (parentClip != null)
							{
								GraphicsPath clipPath = WpfToGdi.PathMaker(parentClip, null)[0];
								svgGraphics.SetClip(clipPath);
							}

                            textBrush = WpfToGdi.BrushMaker(gdr.ForegroundBrush);

                            fst = System.Drawing.FontStyle.Regular;
                            fst |= ((typeface.StyleSimulations & StyleSimulations.BoldSimulation) != 0) ? System.Drawing.FontStyle.Bold : 0;
                            fst |= ((typeface.StyleSimulations & StyleSimulations.ItalicSimulation) != 0) ? System.Drawing.FontStyle.Italic : 0;
                            fst |= ((typeface.StyleSimulations & StyleSimulations.BoldItalicSimulation) != 0) ? System.Drawing.FontStyle.Italic | System.Drawing.FontStyle.Bold : 0;

                            fst |= (typeface.Weight.ToString().ToLower().IndexOf("bold") >= 0) ? System.Drawing.FontStyle.Bold : 0;
                            fst |= (typeface.Style.ToString().ToLower().IndexOf("italic") >= 0) ? System.Drawing.FontStyle.Italic : 0;
							string familyName = FontName(typeface);
							textFont = new System.Drawing.Font(
								familyName, (float)(gdr.GlyphRun.FontRenderingEmSize), fst);
							char[] chars = new char[gdr.GlyphRun.Characters.Count];
							gdr.GlyphRun.Characters.CopyTo(chars, 0);
							str = Encoding.Unicode.GetString(Encoding.Unicode.GetBytes(chars));

                            incBox = gdr.GlyphRun.ComputeInkBoundingBox();
                            alignBox = gdr.GlyphRun.ComputeAlignmentBox();

							textFormat = System.Drawing.StringFormat.GenericTypographic;
							textFormat.Alignment = System.Drawing.StringAlignment.Near;
							textFormat.LineAlignment = System.Drawing.StringAlignment.Near;
							textFormat.FormatFlags = System.Drawing.StringFormatFlags.NoWrap;
							textFormat.Trimming = System.Drawing.StringTrimming.None;

                            alignBox.Offset(gdr.GlyphRun.BaselineOrigin.X - gdr.GlyphRun.AdvanceWidths[0] / 2, gdr.GlyphRun.BaselineOrigin.Y);

                            using (System.Drawing.Drawing2D.Matrix newMatrix = WpfToGdi.MatrixMaker(pdfTransform))
                            {
								System.Drawing.Drawing2D.Matrix oldMatrix = svgGraphics.Transform;
								svgGraphics.Transform = newMatrix;
                                //replace unicode ellipsis character with 3 dots to avoid using of chinese fonts which are installed separately in adobe reader.
                                //TODO: make better detection of chinese, do not substitute fonts, embed fonts
                                str = str.Replace("\u2026", " ...");
								svgGraphics.DrawString(str, textFont, textBrush, WpfToGdi.PointFMaker(alignBox.Location), textFormat);
								svgGraphics.Transform = oldMatrix;
                            }

							if (parentClip != null)
								svgGraphics.ResetClip();
                        }
                    }