PDFObject構造体

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Pdf;
using Leadtools.WinForms;
using Leadtools.Drawing;

[TestMethod]
public void PDFObjectExample()
{
   string pdfFileName = Path.Combine(LEAD_VARS.ImagesDir, @"Leadtools.pdf");
   string pngFileName = Path.Combine(LEAD_VARS.ImagesDir, @"LEAD_png.png");
   // Create a PDF document for file at 200 DPI
   using(PDFDocument document = new PDFDocument(pdfFileName))
   {
      document.Resolution = 200;

      // Parse the objects of the first page
      document.ParsePages(PDFParsePagesOptions.Fonts | PDFParsePagesOptions.Objects, 1, 1);

      // Get the page
      PDFDocumentPage page = document.Pages[0];

      // Get the image of the page so we can use it to get the source image objects
      using(RasterImage pageImage = document.GetPageImage(null, page.PageNumber))
      {
         // Create the bitmap to draw the objects to
         using(Bitmap btmp = new Bitmap(page.WidthPixels, page.HeightPixels))
         {
            btmp.SetResolution(document.Resolution, document.Resolution);
            using(Graphics g = Graphics.FromImage(btmp))
            {
               g.Clear(Color.White);

               // Render the objects

               // Text is line at a time
               LeadRect textRect = LeadRect.Empty;
               double textFontHeight = 0;
               StringBuilder textLine = new StringBuilder();

               foreach(PDFObject obj in page.Objects)
               {
                  switch(obj.ObjectType)
                  {
                     case PDFObjectType.Image:
                        RenderImage(g, pageImage, page, obj);
                        break;

                     case PDFObjectType.Text:
                        // Add the text code and rects together
                        textLine.Append(obj.Code);
                        PDFRect rc = page.ConvertRect(PDFCoordinateType.Pdf, PDFCoordinateType.Pixel, obj.Bounds);
                        LeadRect objRect = LeadRect.FromLTRB((int)rc.Left, (int)rc.Top, (int)rc.Right, (int)rc.Bottom);
                        if(textRect.IsEmpty)
                        {
                           textRect = objRect;
                        }
                        else
                        {
                           textRect = LeadRect.Union(textRect, objRect);
                        }

                        textFontHeight = Math.Max(textFontHeight, obj.TextProperties.FontHeight);

                        // If this is the last object in a line, render it
                        if(obj.TextProperties.IsEndOfLine)
                        {
                           RenderText(g, page, textLine.ToString(), textRect, obj.TextProperties, textFontHeight);

                           textLine = new StringBuilder();
                           textRect = LeadRect.Empty;
                        }
                        break;
                  }
               }
            }

            btmp.Save(pngFileName, System.Drawing.Imaging.ImageFormat.Png);
         }
      }
   }
}

private static void RenderImage(Graphics g, RasterImage pageImage, PDFDocumentPage page, PDFObject obj)
{
   LeadRect destRect = new LeadRect(0, 0, page.WidthPixels, page.HeightPixels);

   // Get the object coordinates in pixels
   PDFRect rc = page.ConvertRect(PDFCoordinateType.Pdf, PDFCoordinateType.Pixel, obj.Bounds);
   LeadRect destClipRect = LeadRect.FromLTRB((int)rc.Left, (int)rc.Top, (int)rc.Right, (int)rc.Bottom);

   // Draw from the page image to the destination graphics
   RasterPaintProperties props = RasterPaintProperties.Default;
   props.PaintEngine = RasterPaintEngine.GdiPlus;
   RasterImagePainter.Paint(
      pageImage,
      g,
      LeadRect.Empty,
      LeadRect.Empty,
      destRect,
      destClipRect,
      props);
}

private static void RenderText(Graphics g, PDFDocumentPage page, string text, LeadRect textRect, PDFTextProperties textProperties, double textFontHeight)
{
   // Create the font
   PDFFont font = page.Fonts[textProperties.FontIndex];
   string faceName = font.FaceName;
   if(string.IsNullOrEmpty(faceName))
   {
      // Could be an embedded font, use Arial
      faceName = "Arial";
   }

   FontStyle fontStyle = FontStyle.Regular;

   if((font.FontStyle & PDFFontStyle.Bold) == PDFFontStyle.Bold)
   {
      fontStyle |= FontStyle.Bold;
   }

   if((font.FontStyle & PDFFontStyle.Italic) == PDFFontStyle.Italic)
   {
      fontStyle |= FontStyle.Italic;
   }

   if((font.FontStyle & PDFFontStyle.Underline) == PDFFontStyle.Underline)
   {
      fontStyle |= FontStyle.Underline;
   }

   using(Font f = new Font(faceName, (float)textFontHeight * 72 / g.DpiY, fontStyle))
   {
      using(Brush brush = new SolidBrush(RasterColorConverter.ToColor(textProperties.Color)))
      {
         Rectangle rect = new Rectangle(textRect.X, textRect.Y, textRect.Width, textRect.Height);

         using(StringFormat sf = new StringFormat())
         {
            sf.Alignment = StringAlignment.Center;
            sf.LineAlignment = StringAlignment.Center;
            sf.FormatFlags |= StringFormatFlags.NoClip | StringFormatFlags.NoWrap;

            g.DrawString(text, f, brush, rect, sf);
         }
      }
   }
}

static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}