For HTML2PDF and XML2PDF solution check our PDFDoc Scout ActiveX library instead

using System;
using System.Collections.Generic;
using System.Text;
using Bytescout.PDF;
using System.Diagnostics;

namespace HelloWorld
{
class Program
{
static void Main(string[] args)
{
// Create main PDF Doc Engine
PDFDocEngine engine = new PDFDocEngine("", "");

// Add new document
Document document = engine.AddDocument();

// Append new page to the document
Page page = document.AddPage(PageSizeType.A3, PageOrientationType.LandScape);

// Create new drawing
Drawing drawing = page.AddDrawing();

// font size constant
const int fontSize = 50;

// Add standard font
uint font = document.AddFontStandard(StandardFontType.TimesRoman, FontEncodingType.WinAnsi);

// Set Active Font
drawing.SetActiveFont(font, fontSize, false, false);

// X position of the text to draw
int textX = 10;
// Y position of the text to draw
int textY = 50;

// Draw all font types
for (double i = 0.0f; i < 0.5f; i += 0.0625f)
{
// Set character spacing
drawing.SetCharacterSpacing(i);

// Draw Text
drawing.PlaceText(textX, textY, 0, "CharacterSpacing: " + i.ToString());

// Increase position of the next text
textY += fontSize + 20;
}

// Save document
document.Save("CharacterSpacing.pdf");

// open generated PDF document in default PDF viewer installed in Windows
Process.Start("CharacterSpacing.pdf");
}
}
}

Download example source code: bytescoutpdf_set_character_spacing.zip (5 KB)

For HTML2PDF and XML2PDF solution check our PDFDoc Scout ActiveX library instead