FontHeight Property

Summary

Font height in PDF units.

Syntax

C++/CLI

Java

Python

public double FontHeight { get; set; }

public double getFontHeight(); 
public void setFontHeight( 
   double doubleValue 
);

public: 
property double FontHeight { 
   double get(); 
   void set (    double ); 
}

FontHeight # get and set (PDFTextAnnotation)

Property Value

A System.Double that represents the font height in PDF units (1/72 of an inch and bottom left). The default value is 0.

Remarks

This value contains the height of this PDF text annotation in PDF units (1/72 of an inch and bottom left). You can use the PDFDocumentPage.ConvertPoint method to convert the value to a pixels or inches and then to points if required. Here is an example:

// Get the font height in PDF units, which 1/72 of an inch, i.e. in points 
double fontHeightPoints = pdfObject.TextProperties.FontHeight; 
// Convert to inches:  
double fontHeightInches1 = fontHeightPoints / 72.0; 
// Or use PDFDocumentPage.ConvertPoint to convert to inches: 
PDFPoint pt = new PDFPoint(0, fontHeightPoints); 
double fontHeightInches2 = pdfDocumentPage.ConvertPoint(PDFCoordinateType.Pdf, PDFCoordinateType.Inch, pt).Y; 
// And pixels: 
double fontHeightPixels = pdfDocumentPage.ConvertPoint(PDFCoordinateType.Pdf, PDFCoordinateType.Pixel, pt).Y;

For more information, refer to PDF Coordinate System.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Pdf; 
using Leadtools.WinForms; 
using Leadtools.Drawing; 
 
 
public void PDFTextAnnotationExample() 
{ 
   string pdfSrcFileName = Path.Combine(LEAD_VARS.ImagesDir, @"Leadtools.pdf"); 
   string pdfDestFileName = Path.Combine(LEAD_VARS.ImagesDir, @"LEAD_Annotations.pdf"); 
 
   PDFFile pdfFile = new PDFFile(pdfSrcFileName); 
   List<PDFAnnotation> Annotations = new List<PDFAnnotation>(); 
   PDFTextAnnotation text = new PDFTextAnnotation(); 
   PDFPen pen = new PDFPen(); 
   PDFBrush brush = new PDFBrush(); 
 
   // Assign pen properties 
   // Create dashed red pen with width of 2 
   pen.Color = RasterColor.FromKnownColor(RasterKnownColor.Red); 
   pen.PenStyle = PDFPen.Dashed; 
   pen.Width = 2; 
 
   // Assign brush properties 
   // Create green solid brush 
   brush.BrushStyle = PDFBrush.Solid; 
   brush.Color = RasterColor.FromKnownColor(RasterKnownColor.Green); 
 
   text.FramePen = pen; 
   text.FrameBrush = brush; 
   text.FontHeight = 30; 
   text.Color = RasterColor.FromKnownColor(RasterKnownColor.Magenta); 
   text.FontName = "Arial"; 
   text.Content = "This is annotation text"; 
   text.Justification = PDFTextJustification.Left; 
   text.FrameBounds = new PDFRect(200, 500, 500, 300); 
   Annotations.Add(text); 
 
   pdfFile.WriteAnnotations(Annotations, pdfDestFileName); 
} 
 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

PDFTextAnnotation Class

PDFTextAnnotation Members

PDF Coordinate System

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Help Version 22.0.2023.7.10

Leadtools.Pdf Assembly

Introduction

Getting Started

Namespaces

Leadtools.Pdf Namespace

Assemblies