iTextSharp Row Height and Page Height

#region Build the report
// create a queue for the items
var queue = new Queue<ProductionReportSchema.Production_BuilderRow>(_Orders.Count);
foreach (var row in _Orders)
    queue.Enqueue(row);

PdfPTable table = null;
var page = 1;
for (ProductionReportSchema.Production_BuilderRow row = null; queue.Count > 0; )
{
    row = queue.Peek();
    if (table == null)
    {
        document.NewPage();
        content.BeginText();
        content.SetFontAndSize(courierbold, 12);
        content.ShowTextAligned(left, "Production Report - Batch " + Batch, 36, 564, 0);
        content.ShowTextAligned(centre, DateTime.Now.ToString(), 396, 564, 0);
        content.ShowTextAligned(right, "Page " + page++, 756, 564, 0);
        content.EndText();

        table = new PdfPTable(10);
        table.SetTotalWidth(new float[] { 24, 24, 50, 50, 50, 72, 72, 72, 24, 288 });
        table.DefaultCell.HorizontalAlignment = centre;
        table.AddCell(new Phrase("Done", GridBoldStyle));
        table.AddCell(new Phrase("0-9", GridBoldStyle));
        table.AddCell(new Phrase("B", GridBoldStyle));
        table.AddCell(new Phrase("Order", GridBoldStyle));
        table.AddCell(new Phrase("Line", GridBoldStyle));
        table.AddCell(new Phrase("Item", GridBoldStyle));
        table.AddCell(new Phrase("Colour", GridBoldStyle));
        table.AddCell(new Phrase("Icon", GridBoldStyle));
        table.AddCell(new Phrase("Qty", GridBoldStyle));
        table.DefaultCell.HorizontalAlignment = left;
        table.DefaultCell.VerticalAlignment = top;
        table.AddCell(new Phrase("Name", GridBoldStyle));
        table.CompleteRow();
    }

    table.DefaultCell.PaddingBottom = 0;
    table.DefaultCell.Border = Rectangle.NO_BORDER;
    table.DefaultCell.BorderWidthTop = 0.25f;
    table.DefaultCell.HorizontalAlignment = centre;
    var box = new PdfPCell(table.DefaultCell);
    box.AddElement(row.Quantity == 1 ? checkbox : doublecheckbox);
    table.AddCell(box); // done
    table.AddCell(new Phrase(row.Priority.ToString(), GridStyle)); // priority
    table.AddCell(new Phrase("B" + row.id, GridStyle)); // b#
    table.AddCell(new Phrase("O" + row.OrderNo, GridStyle)); // order no
    table.AddCell(new Phrase("L" + row.ODid, GridStyle)); // line#
    table.AddCell(new Phrase(row.ItemNo, GridStyle)); // item
    if (row.IsColourNull())
        table.AddCell(string.Empty);
    else
    {
        var ColourRow = Globals.Standards.Colours.FindByid(row.Colour);
        table.AddCell(new Phrase(ColourRow == null ? string.Empty : ColourRow.Name_en, GridStyle)); // colour
    }
    if (row.IsIconNull())
        table.AddCell(string.Empty);
    else
    {
        var IconRow = Globals.Standards.Icons.FindByCode((short)row.Icon);
        table.AddCell(new Phrase(IconRow == null ? string.Empty : IconRow.Name_en, GridStyle)); // icon
    }
    table.AddCell(new Phrase(row.Quantity.ToString(), GridStyle)); // qty

    table.DefaultCell.HorizontalAlignment = centre;
    // make barcodes
    var texts =  new List<string>();

    var xml = new XmlDocument();
    var valid = true;
    try { xml.LoadXml(row.MetaXml); }
    catch (XmlException) { valid = false; }

    // for granular group items
    var xpath1 = string.Format("//SubItem[@Code='{0}']", row.ItemNo);
    var node1 = xml.SelectSingleNode(xpath1);
    // for items with text embedded in XML
    var nodes2 = xml.SelectNodes("//Text");

    if (valid && node1 != null && node1.Attributes["GranularGroup"] == null)
    {
        foreach (XmlNode child in node1.ChildNodes)
            if (child.Name == "Text")
                texts.Add(child.InnerText);
    }
    else if (nodes2.Count != 0)
    {
        foreach (XmlNode node in nodes2)
        {
            texts.Add(node.InnerText);
            if (nodes2.Count > 10 && node == nodes2[9])
                break;
        }
    }
    else
    {
        var TextLines = Regex.Matches(row.Name, @"(?<Output>.+?)(?<EOL>\|\||\r?\n|$)", RegexOptions.Multiline);
        foreach (Match match in TextLines)
            texts.Add(match.Groups["Output"].Value);
    }

    var TextCell = new PdfPCell(table.DefaultCell);
    foreach (var text in texts)
        if (Text.IsPrintable(text))
        {
            var barcode = new Barcode128();
            barcode.Font = courier;
            barcode.BarHeight = 12;
            barcode.Code = text;
            barcode.TextAlignment = left;
            var bi = barcode.CreateImageWithBarcode(content, black, black);
            bi.ScalePercent(100);
            TextCell.AddElement(bi); // name
        }
        else
            TextCell.AddElement(new Phrase(text, GridStyle)); // name
    table.AddCell(TextCell);

    // If it fits, commit the row we just added
    if (table.TotalHeight <= 500)
    {
        table.CompleteRow();
        // a row just for comments
        table.DefaultCell.PaddingBottom = 10;
        table.DefaultCell.BorderWidthTop = 0f;
        var CommentCell = new PdfPCell(table.DefaultCell);
        CommentCell.AddElement(new Phrase(row.Comments, GridStyle));
        CommentCell.Colspan = 10;
        table.AddCell(CommentCell);
        table.CompleteRow();
        queue.Dequeue();
    }
    else
    {
        table.DeleteLastRow();
        table.WriteSelectedRows(0, -1, 36, 540, content);
        table = null;
    }
}
if(table != null)
    table.WriteSelectedRows(0, -1, 36, 540, content);

document.Close();
var PdfViewer = new PdfViewer();
PdfViewer.Filename = filename;
PdfViewer.Show();
#endregion