/// <summary>
/// Create font of PDF document based on TrueType font.
/// </summary>
/// <param name="pdfFilename">The filename of PDF document.</param>
/// <param name="trueTypeFontFilename">The filename of TrueType font.</param>
public static void CreateSimpleFont(string pdfFilename, string trueTypeFontFilename)
{
    // open PDF document
    using (Vintasoft.Imaging.Pdf.PdfDocument document = 
        new Vintasoft.Imaging.Pdf.PdfDocument(pdfFilename))
    {
        // create font of PDF document based on TrueType font
        Vintasoft.Imaging.Pdf.Tree.Fonts.PdfFont newFont = 
            document.FontManager.CreateSimpleFontFromTrueTypeFont(trueTypeFontFilename);
        //...
    }
}

/// <summary>
/// Create font of PDF document based on TrueType font.
/// </summary>
/// <param name="pdfFilename">The filename of PDF document.</param>
/// <param name="trueTypeFontFilename">The filename of TrueType font.</param>
public static void CreateSimpleFont(string pdfFilename, string trueTypeFontFilename)
{
    // open PDF document
    using (Vintasoft.Imaging.Pdf.PdfDocument document = 
        new Vintasoft.Imaging.Pdf.PdfDocument(pdfFilename))
    {
        // create font of PDF document based on TrueType font
        Vintasoft.Imaging.Pdf.Tree.Fonts.PdfFont newFont = 
            document.FontManager.CreateSimpleFontFromTrueTypeFont(trueTypeFontFilename);
        //...
    }
}