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TextProperties Property

Summary
Text properties such as font information and color of this PDFObject text item.
Syntax
C#
C++/CLI
Java
Python
public PDFTextProperties TextProperties { get; set; } 
public PDFTextProperties getTextProperties(); 
public void setTextProperties( 
   PDFTextProperties pDFTextProperties 
); 
public: 
property PDFTextProperties TextProperties { 
   PDFTextProperties get(); 
   void set (    PDFTextProperties ); 
} 
TextProperties # get and set (PDFObject) 

Property Value

A PDFTextProperties structure that contain the text properties such as font information and color of this PDFObject text item. The default value is a default PDFTextProperties object.

Remarks

The TextProperties property is only valid for text items, i.e., when the value of ObjectType is PDFObjectType.Text. The character code of the text item will be stored in the Code property of this object.

Example
C#
Java
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Pdf; 
using Leadtools.WinForms; 
using Leadtools.Drawing; 
 
 
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.ParseDocumentStructure(PDFParseDocumentStructureOptions.Fonts); 
      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, document, 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, PDFDocument document, PDFDocumentPage page, string text, LeadRect textRect, PDFTextProperties textProperties, double textFontHeight) 
{ 
   // Create the font 
 
   // Find it in the fonts collection 
   string faceName = null; 
 
   if (document.Fonts != null && textProperties.FontIndex < document.Fonts.Count) 
   { 
      PDFFont font = document.Fonts[textProperties.FontIndex]; 
      faceName = font.FaceName; 
   } 
 
   if (string.IsNullOrEmpty(faceName)) 
   { 
      // Could be an embedded font, use Arial 
      faceName = "Arial"; 
   } 
 
   using (Font f = new Font(faceName, (float)textFontHeight * 72 / g.DpiY)) 
   { 
      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:\LEADTOOLS23\Resources\Images"; 
} 
 
import java.awt.Color; 
import java.awt.Font; 
import java.awt.Graphics; 
import java.awt.Graphics2D; 
import java.awt.image.BufferedImage; 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
 
import leadtools.*; 
import leadtools.pdf.*; 
 
 
public void pdfObjectExample() { 
 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String pdfFileName = combine(LEAD_VARS_IMAGES_DIR, "Leadtools.pdf"); 
 
   // Create a PDF document for file at 200 DPI 
   PDFDocument document = new PDFDocument(pdfFileName); 
   document.setResolution(200); 
 
   // Parse the objects of the first page 
   document.parseDocumentStructure(PDFParseDocumentStructureOptions.FONTS.getValue()); 
   document.parsePages(PDFParsePagesOptions.FONTS.getValue() | PDFParsePagesOptions.OBJECTS.getValue(), 1, 1); 
 
   // Get the page 
   PDFDocumentPage page = document.getPages().get(0); 
 
   // Get the image of the page so we can use it to get the source image objects 
   RasterImage pageImage = document.getPageImage(null, page.getPageNumber()); 
 
   // Create the bitmap to draw the objects to 
   BufferedImage bImg = new BufferedImage(pageImage.getWidth(), pageImage.getHeight(), BufferedImage.TYPE_INT_RGB); 
   Graphics2D g = (Graphics2D) bImg.getGraphics(); 
   g.setBackground(new Color(255, 255, 255)); 
 
   // Text is line at a time 
   LeadRect textRect = LeadRect.getEmpty(); 
   double textFontHeight = 0; 
   StringBuilder textLine = new StringBuilder(); 
 
   for (PDFObject obj : page.getObjects()) { 
 
      switch (obj.getObjectType()) { 
 
         case IMAGE: 
            System.out.println("Image Found"); 
            break; 
 
         case TEXT: 
            // Add the text code and rects together 
            textLine.append(obj.getCode()); 
            PDFRect rc = page.convertRect(PDFCoordinateType.PDF, PDFCoordinateType.PIXEL, obj.getBounds()); 
            LeadRect objRect = LeadRect.fromLTRB((int) rc.getLeft(), (int) rc.getTop(), (int) rc.getRight(), 
                  (int) rc.getBottom()); 
            if (textRect.isEmpty()) { 
               textRect = objRect; 
            } else { 
               textRect = LeadRect.union(textRect, objRect); 
            } 
 
            double max = Math.max(textFontHeight, obj.getTextProperties().getFontHeight()); 
            textFontHeight = max; 
 
            // If this is the last object in a line, render it 
            if (obj.getTextProperties().isEndOfLine()) { 
               renderText(g, document, page, textLine.toString(), textRect, obj.getTextProperties(), textFontHeight); 
               textLine = new StringBuilder(); 
               textRect = LeadRect.getEmpty(); 
            } 
            break; 
         default: 
            break; 
      } 
   } 
   g = null; 
 
   pageImage = null; 
   document = null; 
 
} 
 
private static void renderText(Graphics g, PDFDocument document, PDFDocumentPage page, String text, 
      LeadRect textRect, PDFTextProperties textProperties, double textFontHeight) { 
 
   // Create the font 
 
   // Find it in the fonts collection 
   String faceName = null; 
 
   if (document.getFonts() != null && textProperties.getFontIndex() < document.getFonts().size()) { 
      PDFFont font = document.getFonts().get(textProperties.getFontIndex()); 
      faceName = font.getFaceName(); 
   } 
 
   if (faceName == null || faceName == "") { 
      // Could be an embedded font, use Arial 
      faceName = "Arial"; 
   } 
 
   g.setClip(0, 0, 0, 0); 
   Font f = new Font(faceName, Font.PLAIN, 
         ((int) Math.round(textFontHeight * 72 / (g.getClipBounds()).getHeight()))); 
   g.setFont(f); 
   g.drawString(text, textRect.getX(), textRect.getY()); 
 
} 
Requirements

Target Platforms

Help Version 23.0.2024.2.29
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© 1991-2024 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Pdf Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.