''' <summary>
''' Creates page of PDF document with English, Russian and Chinese text.
''' </summary>
''' <param name="pdfFilename">The filename of PDF document.</param>
Public Shared Sub CreatePdfPageWithEnRuCh(pdfFilename As String)
    ' open PDF document
    Using document As New Vintasoft.Imaging.Pdf.PdfDocument(pdfFilename)
        ' create empty PDF page
        Dim page As New Vintasoft.Imaging.Pdf.Tree.PdfPage(document, Vintasoft.Imaging.PaperSizeKind.A4)
        ' add page to PDF document
        document.Pages.Add(page)

        ' text size
        Dim fontSize As Single = 24F
        ' text brush
        Dim brush As New Vintasoft.Imaging.Pdf.Drawing.PdfBrush(System.Drawing.Color.Black)

        ' get names of font
        Dim fontNames As New System.Collections.Generic.List(Of String)(Vintasoft.Imaging.Fonts.FontProgramsControllerBase.[Default].GetAvailableFontNames())

        ' create fornt for English text
        Dim englishFont As Vintasoft.Imaging.Pdf.Tree.Fonts.PdfFont = Nothing
        ' if "Microsoft Himalaya" font exists
        If fontNames.IndexOf("Microsoft Himalaya") >= 0 Then
            Using programSearchResult As Vintasoft.Imaging.Fonts.FontProgramSearchResult = Vintasoft.Imaging.Fonts.FontProgramsControllerBase.[Default].GetTrueTypeFontProgram(New Vintasoft.Imaging.Fonts.FontInfo("Microsoft Himalaya"))
                ' create PDF font based on "Microsoft Himalaya" font
                englishFont = document.FontManager.CreateSimpleFontFromTrueTypeFont(programSearchResult.FontProgramStream)
            End Using
        Else
            ' if "Microsoft Himalaya" font does NOT exist
            Throw New System.Exception("'Microsoft Himalaya' font is not found in the system.")
        End If

        ' create font for Russian text
        Dim russianFont As Vintasoft.Imaging.Pdf.Tree.Fonts.PdfFont = Nothing
        ' if "Times New Roman" font exists
        If fontNames.IndexOf("Times New Roman") >= 0 Then
            ' create PDF font based on "Times New Roman" font
            Using programSearchResult As Vintasoft.Imaging.Fonts.FontProgramSearchResult = Vintasoft.Imaging.Fonts.FontProgramsControllerBase.[Default].GetTrueTypeFontProgram(New Vintasoft.Imaging.Fonts.FontInfo("Times New Roman"))
                russianFont = document.FontManager.CreateCIDFontFromTrueTypeFont(programSearchResult.FontProgramStream)
            End Using
        Else
            ' if "Times New Roman" font does NOT exist
            Throw New System.Exception("'Times New Roman' font is not found in the system.")
        End If

        ' create font for Chinese text
        Dim chineseFont As Vintasoft.Imaging.Pdf.Tree.Fonts.PdfFont = Nothing
        ' if "SimHei" font exists
        If fontNames.IndexOf("SimHei") >= 0 Then
            ' create PDF font based on "SimHei" font
            Using programSearchResult As Vintasoft.Imaging.Fonts.FontProgramSearchResult = Vintasoft.Imaging.Fonts.FontProgramsControllerBase.[Default].GetTrueTypeFontProgram(New Vintasoft.Imaging.Fonts.FontInfo("SimHei"))
                chineseFont = document.FontManager.CreateCIDFontFromTrueTypeFont(programSearchResult.FontProgramStream)
            End Using
        Else
            ' if "SimHei" font does NOT exist
            Throw New System.Exception("'SimHei' font is not found in the system.")
        End If

        ' get PDF graphics of page
        Using graphics As Vintasoft.Imaging.Pdf.Drawing.PdfGraphics = page.GetGraphics()
            ' location of English text
            Dim location As New System.Drawing.PointF(50, page.Size.Height - 50)
            ' draw English text
            graphics.DrawString("Hello", englishFont, fontSize, brush, location)

            ' location of Russian text
            location.Y -= 50
            ' draw Russian text
            graphics.DrawString("������", russianFont, fontSize, brush, location)

            ' location of Chinese text
            location.Y -= 50
            ' draw Chinese text
            graphics.DrawString("??", chineseFont, fontSize, brush, location)
        End Using

        ' save changes to a file
        document.SaveChanges()
    End Using
End Sub

/// <summary>
/// Creates page of PDF document with English, Russian and Chinese text.
/// </summary>
/// <param name="pdfFilename">The filename of PDF document.</param>
public static void CreatePdfPageWithEnRuCh(string pdfFilename)
{
    // open PDF document
    using (Vintasoft.Imaging.Pdf.PdfDocument document = 
        new Vintasoft.Imaging.Pdf.PdfDocument(pdfFilename))
    {
        // create empty PDF page
        Vintasoft.Imaging.Pdf.Tree.PdfPage page = new Vintasoft.Imaging.Pdf.Tree.PdfPage(
            document, Vintasoft.Imaging.PaperSizeKind.A4);
        // add page to PDF document
        document.Pages.Add(page);

        // text size
        float fontSize = 24f;
        // text brush
        Vintasoft.Imaging.Pdf.Drawing.PdfBrush brush = 
            new Vintasoft.Imaging.Pdf.Drawing.PdfBrush(System.Drawing.Color.Black);

        // get names of font
        System.Collections.Generic.List<string> fontNames = new System.Collections.Generic.List<string>(Vintasoft.Imaging.Fonts.FontProgramsControllerBase.Default.GetAvailableFontNames());

        // create fornt for English text
        Vintasoft.Imaging.Pdf.Tree.Fonts.PdfFont englishFont = null;
        // if "Microsoft Himalaya" font exists
        if (fontNames.IndexOf("Microsoft Himalaya") >= 0)
        {
            using (Vintasoft.Imaging.Fonts.FontProgramSearchResult programSearchResult =
                Vintasoft.Imaging.Fonts.FontProgramsControllerBase.Default.GetTrueTypeFontProgram(new Vintasoft.Imaging.Fonts.FontInfo("Microsoft Himalaya")))
                // create PDF font based on "Microsoft Himalaya" font
                englishFont = document.FontManager.CreateSimpleFontFromTrueTypeFont(programSearchResult.FontProgramStream);
        }
        // if "Microsoft Himalaya" font does NOT exist
        else
        {
            throw new System.Exception("'Microsoft Himalaya' font is not found in the system.");
        }

        // create font for Russian text
        Vintasoft.Imaging.Pdf.Tree.Fonts.PdfFont russianFont = null;
        // if "Times New Roman" font exists
        if (fontNames.IndexOf("Times New Roman") >= 0)
        {
            // create PDF font based on "Times New Roman" font
            using (Vintasoft.Imaging.Fonts.FontProgramSearchResult programSearchResult =
                Vintasoft.Imaging.Fonts.FontProgramsControllerBase.Default.GetTrueTypeFontProgram(new Vintasoft.Imaging.Fonts.FontInfo("Times New Roman")))
                russianFont = document.FontManager.CreateCIDFontFromTrueTypeFont(programSearchResult.FontProgramStream);
        }
        // if "Times New Roman" font does NOT exist
        else
        {
            throw new System.Exception("'Times New Roman' font is not found in the system.");
        }

        // create font for Chinese text
        Vintasoft.Imaging.Pdf.Tree.Fonts.PdfFont chineseFont = null;
        // if "SimHei" font exists
        if (fontNames.IndexOf("SimHei") >= 0)
        {
            // create PDF font based on "SimHei" font
            using (Vintasoft.Imaging.Fonts.FontProgramSearchResult programSearchResult =
                Vintasoft.Imaging.Fonts.FontProgramsControllerBase.Default.GetTrueTypeFontProgram(new Vintasoft.Imaging.Fonts.FontInfo("SimHei")))
                chineseFont = document.FontManager.CreateCIDFontFromTrueTypeFont(programSearchResult.FontProgramStream);
        }
        // if "SimHei" font does NOT exist
        else
        {
            throw new System.Exception("'SimHei' font is not found in the system.");
        }

        // get PDF graphics of page
        using (Vintasoft.Imaging.Pdf.Drawing.PdfGraphics graphics = page.GetGraphics())
        {
            // location of English text
            System.Drawing.PointF location = new System.Drawing.PointF(50, page.Size.Height - 50);
            // draw English text
            graphics.DrawString("Hello", englishFont, fontSize, brush, location);

            // location of Russian text
            location.Y -= 50;
            // draw Russian text
            graphics.DrawString("Привет", russianFont, fontSize, brush, location);

            // location of Chinese text
            location.Y -= 50;
            // draw Chinese text
            graphics.DrawString("您好", chineseFont, fontSize, brush, location);
        }

        // save changes to a file
        document.SaveChanges();
    }
}