Creating a PDF with itextsharp works fine in development but fails when deployed to IIS 7 - iis-7

Question

I am deploying and testing an application using IIS 7. It creates a PDF using ITextSharp, which works fine when running from VS2010. When running from IIS, I get an error: The document has no pages.
Using the same data with the VS2010 development server, the PDF is printed OK. The error has nothing to do with a lack of pages.
The itextsharp.dll is included in the bin folder under the IIS Web Site.
What am I missing?
Here is my code (though I do not tjhink it is relevant);
protected void TextSharpMethod()
{
// get order details
#region getOrdersData
var ordersData = DataAccessLayer.OrdersDataHelpers.getOrderDataByOrderId(_intOrderId);
#endregion
if (ordersData != null)
{
#region getSupplierDetails
// get supplier details
var rowSupplier = (from s in _dataContextOrders.FMSSuppliers
where s.ID == ordersData.SupplierID
select new
{
s.ID,
s.CommonShortName,
s.ExternalRef,
s.Name,
s.Address,
s.SupplierDetail.Telephone,
s.SupplierDetail.WebAddress,
s.SupplierDetail.Email,
s.SupplierDetail.Fax
}).FirstOrDefault();
#endregion
#region getOrderLineData
var orderLineData = (from ol in _dataContextOrders.OrderLines
join o in _dataContextOrders.Orders on ol.OrderID equals o.ID
join ec in _dataContextOrders.FMSExpenseCodes on ol.OrderLineExpenseCodeID equals ec.ID into group1
from g1 in group1.DefaultIfEmpty()
join cc in _dataContextOrders.FMSCostCentres on ol.OrderLineCostCentreID equals cc.ID into group2
from g2 in group2.DefaultIfEmpty()
select new
{
ol.ID,
ol.OrderID,
ol.OrderLineNumber,
ol.OrderLineQty,
ol.OrderLineDescription,
ol.OrderLineUnitCost,
ol.OrderLineUnitTax,
ol.OrderLineTotal,
ol.OrderLineExpenseCodeID,
ol.GoodsReceivedQty,
ol.InvoicedQty,
ol.OrderLineCostCentreID,
ol.OrderLineVatRate,
ol.OrderLineUnitGross,
ExpenseCode = g1.ExternalRef == null ? "" : g1.ExternalRef,
CostCodeRef = g2.ExternalRef == null ? "" : g2.ExternalRef
}).Where(ol => ol.OrderID == _intOrderId).OrderBy(ol => ol.OrderLineNumber);
#endregion
using (MemoryStream ms = new MemoryStream())
using (Document document = new Document(PageSize.A4, 25, 25, 30, 30))
using (PdfWriter writer = PdfWriter.GetInstance(document, ms))
{
document.AddCreator("SVSIT");
document.AddTitle("PURCHASE ORDER");
document.Open();
#region setupPdfDoc
// LOGO
string path = Server.MapPath("/");
string imageLocation = path + "/Images/southView_integration_logo_applications.jpg";
imageLocation = imageLocation.Replace("\\", "/");
iTextSharp.text.Image bmp =
iTextSharp.text.Image.GetInstance(imageLocation);
// caution - image may not work if app is moved
bmp.Alignment = Element.ALIGN_LEFT;
bmp.ScalePercent(50f);
document.Add(bmp);
// COMPANY ADDRESS
PdfPTable table = new PdfPTable(2);
PdfPCell cell;
//actual width of table in points (A4=595points)
table.TotalWidth = 550f;
table.LockedWidth = true;
float[] widths = new float[] {2.75f, 2.75f};
table.SetWidths(widths);
// 0=no border, 1=border
table.DefaultCell.BorderWidth = 0;
PdfBlankCell(table);
PdfAddTableCell(table, "PURCHASE ORDER", _bold);
PdfBlankCell(table);
float flXPos = 842; // 842 - height of A4 in points
table.WriteSelectedRows(0, -1, document.Left, flXPos, writer.DirectContent);
// CONTACT PERSON
table = new PdfPTable(4);
//actual width of table in points (A4=595points)
table.TotalWidth = 550f;
table.LockedWidth = true;
widths = new float[] {1f, 1.75f, 1.35f, 1.35f};
table.SetWidths(widths);
// 0=no border, 1=border
table.DefaultCell.BorderWidth = 0;
PdfAddTableCell(table, "Contact Person", _norm);
PdfAddTableCell(table, ordersData.OrderContactName, _norm);
PdfAddTableCell(table, "Tel: " + ordersData.OrderContactTel, _norm);
PdfAddTableCell(table, "Fax: " + ordersData.OrderContactFax, _norm);
flXPos = 715;
table.WriteSelectedRows(0, -1, document.Left, flXPos, writer.DirectContent);
// SUPPLIER DETAILS
table = new PdfPTable(1);
table.TotalWidth = 270f;
table.LockedWidth = true;
table.DefaultCell.BorderWidth = 1; // has border
PdfAddTableCell(table, "To (Supplier)", _bold);
table.AddCell(ordersData.SupplierName);
if (rowSupplier != null)
{
table.AddCell(rowSupplier.Address); // might want to break this up by line breaks
}
else
{
table.AddCell(" ");
}
flXPos = 695;
table.WriteSelectedRows(0, -1, document.Left, flXPos, writer.DirectContent);
// ORDER NO
table = new PdfPTable(1);
table.TotalWidth = 275f;
table.LockedWidth = true;
table.DefaultCell.BorderWidth = 0;
table.DefaultCell.BorderWidthTop = 1;
table.DefaultCell.BorderWidthLeft = 1;
table.DefaultCell.BorderWidthRight = 1;
PdfAddTableCell(table, "Order No: " + ordersData.PORef + " / 100630", _bold);
table.DefaultCell.BorderWidthTop = 0;
table.DefaultCell.BorderWidthLeft = 1;
table.DefaultCell.BorderWidthRight = 1;
PdfAddTableCell(table, " ", _bold);
PdfBlankCell(table);
PdfAddTableCell(table, "Date: " + ordersData.CreatedDate.ToShortDateString (), _bold);
PdfAddTableCell(table, "Your ref: " + ordersData.OtherRef, _bold);
PdfAddTableCell(table, " ", _bold);
PdfAddTableCell(table, "PURCHASE ORDER NUMBER MUST BE", _bold);
table.DefaultCell.BorderWidthTop = 0;
table.DefaultCell.BorderWidthLeft = 1;
table.DefaultCell.BorderWidthRight = 1;
table.DefaultCell.BorderWidthBottom = 1;
PdfAddTableCell(table, "QUOTED ON INVOICE TO ENSURE PAYMENT", _bold);
table.WriteSelectedRows(0, -1, document.Left + 275, flXPos, writer.DirectContent);
flXPos = 595;
// DELIVERY ADDRESS
table = new PdfPTable(1);
table.TotalWidth = 270f;
table.LockedWidth = true;
table.DefaultCell.BorderWidth = 1; // has border
PdfAddTableCell(table, "Delivery Address:", _bold);
table.AddCell(ordersData.DeliveryContactName);
table.AddCell(ordersData.DeliveryAddress);
table.WriteSelectedRows(0, -1, document.Left, flXPos, writer.DirectContent);
// INVOICE ADDRESS
table = new PdfPTable(1);
table.TotalWidth = 275f;
table.LockedWidth = true;
table.DefaultCell.BorderWidth = 0;
table.DefaultCell.BorderWidthTop = 1;
table.DefaultCell.BorderWidthLeft = 1;
table.DefaultCell.BorderWidthRight = 1;
PdfAddTableCell(table, "Invoice Address:", _bold);
table.DefaultCell.BorderWidthTop = 0;
table.DefaultCell.BorderWidthLeft = 1;
table.DefaultCell.BorderWidthRight = 1;
PdfAddTableCell(table, " CVCHA", _norm);
PdfAddTableCell(table, " 11 High Street", _norm);
PdfAddTableCell(table, " Castle Vale", _norm);
PdfAddTableCell(table, " Birmingham", _norm);
table.DefaultCell.BorderWidthTop = 0;
table.DefaultCell.BorderWidthLeft = 1;
table.DefaultCell.BorderWidthRight = 1;
table.DefaultCell.BorderWidthBottom = 1;
PdfAddTableCell(table, " B35 7PR", _norm);
table.WriteSelectedRows(0, -1, document.Left + 275, flXPos, writer.DirectContent);
// ORDER LINES
table = new PdfPTable(5);
table.TotalWidth = 550f;
table.LockedWidth = true;
widths = new float[] {2.70f, .7f, .7f, .7f, .7f};
table.SetWidths(widths);
table.DefaultCell.BorderWidth = 1;
PdfAddTableCell(table, "Description", _bold);
PdfAddTableCell(table, "Code", _bold);
PdfAddTableCell(table, "Quantity", _bold);
PdfAddTableCell(table, "Unit Cost", _bold);
PdfAddTableCell(table, "Total Cost", _bold);
// 13 rows
// get order lines data
int i1 = 0;
foreach (var orderLine in orderLineData)
{
if (orderLine != null)
{
PdfAddTableCell(table, orderLine.OrderLineDescription, _norm);
PdfAddTableCell(table, orderLine .CostCodeRef +", " + orderLine.ExpenseCode , _norm); // code - to do
PdfAlignRightTableCell(table, orderLine.OrderLineQty.ToString(), _norm);
PdfAlignRightTableCell (table, orderLine.OrderLineUnitCost.ToString(), _norm);
PdfAlignRightTableCell(table, orderLine.OrderLineTotal.ToString(), _norm);
i1++;
}
}
// fill remaining grid
for (int i = i1; i <= 13; i++)
{
PdfAddTableCell(table, " ", _norm);
PdfAddTableCell(table, " ", _norm);
PdfAddTableCell(table, " ", _norm);
PdfAddTableCell(table, " ", _norm);
PdfAddTableCell(table, " ", _norm);
}
// DELIVERY DATE / TOTAL LINE
PdfAddTableCell(table, "Required Delivery Date: " + ordersData.ExpectedDeliveryDate, _bold);
_chunk = new Chunk("Total: £", _bold );
cell = new PdfPCell(new Phrase(_chunk));
cell.Colspan = 3;
table.DefaultCell.BorderWidth = 1;
table.AddCell(cell);
_chunk = new Chunk(ordersData.TotalAmount.ToString("0.00"), _bold);
cell = new PdfPCell(new Phrase(_chunk));
cell.Colspan = 1;
table.DefaultCell.VerticalAlignment = Element.ALIGN_RIGHT;
table.DefaultCell.HorizontalAlignment = Element.ALIGN_RIGHT;
table.AddCell(cell);
flXPos = 490;
table.WriteSelectedRows(0, -1, document.Left, flXPos, writer.DirectContent);
// PREPARED BY / AUTHORISED BY
table = new PdfPTable(3);
table.TotalWidth = 550f;
table.LockedWidth = true;
widths = new float[] {1.83f, 1.83f, 1.83f};
table.SetWidths(widths);
table.DefaultCell.BorderWidth = 1;
PdfAddTableCell(table, "Prepared By:" + "", _bold);
PdfAddTableCell(table, "Signature:" + "", _bold);
PdfAddTableCell(table, "Date:" + "", _bold);
PdfAddTableCell(table, "Authorised By:" + "", _bold); // ApproverPersonID
PdfAddTableCell(table, "Signature:" + "", _bold);
PdfAddTableCell(table, "Date:" + "", _bold);
flXPos = 195;
table.WriteSelectedRows(0, -1, document.Left, flXPos, writer.DirectContent);
// FOOTER
table = new PdfPTable(1);
table.TotalWidth = 550f;
table.LockedWidth = true;
table.DefaultCell.BorderWidth = 0;
PdfAddTableCell(table, "Distibution of Copies", _norm);
PdfAddTableCell(table,
"1. White - Supplier 2. Yellow - Finance Section 3. Pink - Originator (Budget Holder)",
_norm);
PdfAddTableCell(table, "Industrial & Provident Society No. 28414R Housing Corporation No. L4118",
_norm);
flXPos = 95;
table.WriteSelectedRows(0, -1, document.Left, flXPos, writer.DirectContent);
#endregion
document.Close();
writer.Close();
#region writeToDatabase
MemoryStream ms2 = new MemoryStream(ms.ToArray());
WritePdfToDatabase(ms2);
#endregion
Response.ContentType = "pdf/application";
Response.AddHeader("content-disposition", "attachment;filename=PurchaseOrder.pdf");
Response.OutputStream.Write(ms.GetBuffer(), 0, ms.GetBuffer().Length);
}
}
}
protected void WritePdfToDatabase(MemoryStream ms2)
{
BinaryReader br = new BinaryReader(ms2);
Byte[] bytes = br.ReadBytes((Int32)ms2.Length);
br.Close();
DocumentsDataHelper.UpdateDocument(bytes, "pdf/application", "Purchase Order",_intOrderId ,1);
}
protected void PdfBlankCell(PdfPTable table)
{
_chunk = new Chunk("", _norm);
_phrase = new Phrase(_chunk);
table.AddCell(_phrase);
}
protected void PdfAddTableCell(PdfPTable table, string s, Font f)
{
_chunk = new Chunk(s, f);
_phrase = new Phrase(_chunk);
table.DefaultCell.HorizontalAlignment = Element.ALIGN_LEFT;
table.AddCell(_phrase);
}
protected void PdfAlignRightTableCell(PdfPTable table, string s, Font f)
{
_chunk = new Chunk(s, f);
_phrase = new Phrase(_chunk);
table.DefaultCell.HorizontalAlignment = Element.ALIGN_RIGHT;
table.AddCell(_phrase);
}
protected void PdfTableFieldAndHeader(string heading, string value, PdfPTable table)
{
PdfAddTableCell(table, heading, _bold);
PdfAddTableCell(table, value, _norm);
}
protected void PdfBoldAndNormLine(string text1, string text2, Document document)
{
Chunk c1 = new Chunk(text1, FontFactory.GetFont(FontFactory.TIMES_ROMAN, 12.0f, iTextSharp.text.Font.BOLD));
Chunk c2 = new Chunk(text2, FontFactory.GetFont(FontFactory.TIMES_ROMAN, 12.0f, iTextSharp.text.Font.NORMAL));
Phrase p1 = new Phrase();
p1.Add(c1);
p1.Add(c2);
Paragraph p = new Paragraph();
p.Add(p1);
p.Alignment = Element.ALIGN_LEFT;
document.Add(p);
}