Hi All: I have some code I pieced together from various examples online
to create a single PDF from a 6-page template file that gets customized
iteratively. The template PDF is about 500K, and I'm trying to use
pdfSmartCopy to keep the overall size of the final PDF down to a
manageable level.
The code is called from an ASP.NET page, and writes the final PDF to a
directory. I'm testing in VS2010 and IISExpress on Windows 7.
I've been testing my code, and find that I can generate a PDF with 300
records (1800 pages) without a problem, and the final PDF is about 25M
in size.
But if I try to create a document with more records, eventually I
receive an error after about 400 records:
iTextSharp.text.exceptions.InvalidPdfException was unhandled by user code
Message=trailer not found.
Source=itextsharp
StackTrace:
at iTextSharp.text.pdf.PdfReader.RebuildXref()
at iTextSharp.text.pdf.PdfReader.ReadPdf()
at iTextSharp.text.pdf.PdfReader..ctor(String filename, Byte[]
ownerPassword)
at iTextSharp.text.pdf.PdfReader..ctor(String filename)
at Project.pdfGen.makeBulkTempIDkit(String filename, DateTime
tmpDate, Int32 employerID, String fOutput, Guid uID, Int32 idType) in
C:\project\pdfGen.vb:line 91
at Project.tempID.genIDs_Click(Object sender, EventArgs e) in
C:\project\admin\tempID.aspx.vb:line 241
at System.Web.UI.WebControls.Button.OnClick(EventArgs e)
at System.Web.UI.WebControls.Button.RaisePostBackEvent(String
eventArgument)
at
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String
eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler
sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection
postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
InnerException:
I'm not sure if I'm properly closing everything or if I'm causing memory
issues with my code...thanks in advance for any help.
Public Shared Function makeBulkTempIDkit(filename As String,
fOutput As String) As Boolean
Dim doc As New Document()
Dim copy As New PdfSmartCopy(doc, New FileStream(fOutput,
FileMode.Create))
doc.Open()
Dim ms As MemoryStream = Nothing
Dim stamper As PdfStamper = Nothing
Dim reader As PdfReader = Nothing
Dim name As String = String.Empty
Dim address As String = String.Empty
Dim address2 As String = String.Empty
For i As Integer = 0 To dt.Rows.Count - 1
ms = New MemoryStream()
reader = New PdfReader(filename)
stamper = New PdfStamper(reader, ms)
name = dt.Rows(i)("name")
address = dt.Rows(i)("address")
address2 = dt.Rows(i)("city") + ", " +
dt.Rows(i)("state") + " " + dt.Rows(i)("zip")
Dim canvas As PdfContentByte = stamper.GetOverContent(1)
ColumnText.ShowTextAligned(canvas, Element.ALIGN_LEFT,
New Phrase(name), 72, 621, 0)
ColumnText.ShowTextAligned(canvas, Element.ALIGN_LEFT,
New Phrase(address), 72, 607, 0)
ColumnText.ShowTextAligned(canvas, Element.ALIGN_LEFT,
New Phrase(address2), 72, 593, 0)
canvas = stamper.GetOverContent(2)
ColumnText.ShowTextAligned(canvas, Element.ALIGN_LEFT,
New Phrase(name), 212, 624, 0)
ColumnText.ShowTextAligned(canvas,
Element.ALIGN_LEFT, New Phrase(dt.Rows(i)("tempID").ToString), 212, 592, 0)
stamper.FormFlattening = True
stamper.Close()
reader.Close()
reader = New PdfReader(ms.ToArray())
For j As Integer = 1 To 6
copy.AddPage(copy.GetImportedPage(reader, j))
Next
Next
doc.Close()
End Function
------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
iText-questions mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/itext-questions
iText(R) is a registered trademark of 1T3XT BVBA.
Many questions posted to this list can (and will) be answered with a reference
to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples:
http://itextpdf.com/themes/keywords.php
