RadPrintDocument - Print from RadGridView and RadRichTextEditor in a single page

GridViewPdfExport export;
private void radButtonExport_Click(object sender, EventArgs e)
{
    this.export = new GridViewPdfExport(this.radGridView1);
    this.export.ExportVisualSettings = false;
    this.export.CellPaint += this.Export_CellPaint;
    this.export.ShowHeaderAndFooter = true;
    this.export.MiddleHeader = "Header";
    this.export.MiddleFooter = "Footer";

    PdfExportRenderer renderer = new PdfExportRenderer();
    this.export.RunExport(@"../../Exported/ExportedFile.pdf", renderer);
}

private void Export_CellPaint(object sender, ExportCellPaintEventArgs e)
{
    if (e.Cell.RowIndex == this.radGridView1.RowCount - 1 &&
        e.Cell.ColumnIndex == this.radGridView1.ColumnCount - 1)
    {
        // Draw the content of the two RichTextEditors after the Last cell is painted

        // Step 1 is to get available rectangle between the exported rows and the footer
        Padding pageMarginsPx = GridExportUtils.ConvertMmToDipPadding(this.export.PageMargins);
        SizeF pageSizePx = GridExportUtils.ConvertMmToDipSize(this.export.PageSize);

        int richTextEditorMargin = 10;
        RectangleF availableRect = new RectangleF();
        availableRect.X = pageMarginsPx.Left;
        availableRect.Y = e.Rectangle.Bottom + richTextEditorMargin;
        availableRect.Width = pageSizePx.Width - pageMarginsPx.Horizontal;
        availableRect.Height = pageSizePx.Height - availableRect.Y - (float)this.export.FooterHeight - pageMarginsPx.Bottom;

        // Step 2 is to split the rectangle into left and right parts, for the two RichTextEditors contents.
        float rectWidth = (availableRect.Width - richTextEditorMargin) / 2;
        RectangleF leftRect = new RectangleF(availableRect.Location, availableRect.Size);
        leftRect.Width = rectWidth;

        RectangleF rightRect = new RectangleF(availableRect.Location, availableRect.Size);
        rightRect.X = leftRect.Right + richTextEditorMargin;
        rightRect.Width = rectWidth;

        // Step 3 is to draw the content manually using the FixedContentEditor
        // Left RichTextEditor Rectangle
        e.Editor.CreateMatrixPosition();
        e.Editor.TranslatePosition(leftRect.X, leftRect.Y);
        e.Editor.DrawRectangle(Point.Empty, new PointF(leftRect.Width, leftRect.Height));

        // Left RichTextEditor Content
        FixedContentEditor fixedContentEditor = e.Editor as FixedContentEditor;
        fixedContentEditor.SaveGraphicProperties();
        fixedContentEditor.GraphicProperties.FillColor = new RgbColor(0, 0, 0);
        fixedContentEditor.DrawText(this.radRichTextEditor1.Text, new System.Windows.Size(leftRect.Width, leftRect.Height));
        fixedContentEditor.RestoreGraphicProperties();

        // Right RichTextEditor Rectangle
        e.Editor.CreateMatrixPosition();
        e.Editor.TranslatePosition(rightRect.X, rightRect.Y);
        e.Editor.DrawRectangle(Point.Empty, new PointF(rightRect.Width, rightRect.Height));

        // Right RichTextEditor Content
        fixedContentEditor.SaveGraphicProperties();
        fixedContentEditor.GraphicProperties.FillColor = new RgbColor(0, 0, 0);
        fixedContentEditor.DrawText(this.radRichTextEditor2.Text, new System.Windows.Size(rightRect.Width, rightRect.Height));
        fixedContentEditor.RestoreGraphicProperties();
    }
}