Well, I told you what I thought might be of help at the moment :) and it
appears to be any of the pdf's I have in hand, but here's the immediate
culprit (not attached, 25 mb file, got kicked back as too large).
Thanks //al
Stack trace:
System.NullReferenceException was unhandled
Message="Object reference not set to an instance of an object."
Source="itextsharp"
StackTrace:
at
iTextSharp.text.pdf.PdfReader.PageRefs.IteratePages(PRIndirectReference
rpage)
at
iTextSharp.text.pdf.PdfReader.PageRefs.IteratePages(PRIndirectReference
rpage)
at
iTextSharp.text.pdf.PdfReader.PageRefs.IteratePages(PRIndirectReference
rpage)
at
iTextSharp.text.pdf.PdfReader.PageRefs.IteratePages(PRIndirectReference
rpage)
at iTextSharp.text.pdf.PdfReader.PageRefs.ReadPages()
at iTextSharp.text.pdf.PdfReader.PageRefs..ctor(PdfReader reader)
at iTextSharp.text.pdf.PdfReader.ReadPages()
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 BookOrg.BookOrgClass.doit() in C:\Users\Al\Documents\Visual Studio
2005\Projects\BookOrg\BookOrg\BookOrg.vb:line 240
at BookOrg.BookOrgClass.btnStart_Click(Object sender, EventArgs e) in
C:\Users\Al\Documents\Visual Studio
2005\Projects\BookOrg\BookOrg\BookOrg.vb:line 161
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons
button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at
System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&
m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd,
Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG&
msg)
at
System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.Unsaf
eNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID,
Int32 reason, Int32 pvLoopData)
at
System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32
reason, ApplicationContext context)
at
System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason,
ApplicationContext context)
at System.Windows.Forms.Application.Run(ApplicationContext context)
at
Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun(
)
at
Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoAppl
icationModel()
at
Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(St
ring[] commandLine)
at BookOrg.My.MyApplication.Main(String[] Args) in
17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[]
args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence
assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
> -----Original Message-----
> From: Paulo Soares [mailto:[email protected]]
> Sent: Sunday, March 11, 2012 12:12
> To: Post all your questions about iText here
> Subject: Re: [iText-questions] itext quandary
>
> You are not telling us much either. We need the complete stack trace
> and the PDF.
>
> Paulo
>
>
> On Sun, Mar 11, 2012 at 3:41 PM, Al Jones <[email protected]> wrote:
> > I thought this would be fairly direct given the dll, but obviously not.
> I'm
> > trying to extract the author and title from several pdf files. I know
> that
> > some may have trash, but I'm willing to put up with whatever I can get.
> > However, I'm not even getting there and would appreciate some ideas.
> The
> > following is a part of a shareware program I'm working on, written in VB
> > 2005 and it aborts on the first call to dimension the pdfreader. At
> this
> > point strfile contains "G:\abBooks\Derren Brown - Absolute Magic.pdf"
> >
> > itextsharp.dll ver 5.2.0.0 has been added as a reference and points to
> the
> > itextsharp.dll which is resident in my project directory.
> >
> > The error being returned is:
> >
> > An unhandled exception of type
> 'System.NullReferenceException'
> > occurred in itextsharp.dll.
> >
> > Additional information: Object reference not set to an
> instance
> > of an object.
> >
> >
> >
> > If FileExt = ".pdf" Then
> >
> > Dim reader As New PdfReader(strFile)
> >
> > Dim infodict As New Dictionary(Of String, String)
> >
> > infodict = reader.Info
> >
> > Try
> >
> > If strAuthors = Nothing Then strAuthors =
> > FindAuthors(infodict("Author"))
> >
> > Catch
> >
> > PrintLine(intBOLog, "Missing/invalid PDF author: " &
> > tempFile)
> >
> > End Try
> >
> > Try
> >
> > If strAuthors = Nothing Then strTitle =
> > infodict("Title")
> >
> > Catch
> >
> > PrintLine(intBOLog, "Missing/invalid PDF Title: " &
> > tempFile)
> >
> > End Try
> >
> > reader.Close()
> >
> > reader = Nothing
> >
> > infodict = Nothing
> >
> > End If
> >
> >
> >
> > I really hate errors that don't tell me anything and this one tells *me*
> > nothing. Can anyone provide some guidance, please?
> >
> > //al
>
> --------------------------------------------------------------------------
> ----
> Virtualization & Cloud Management Using Capacity Planning
> Cloud computing makes use of virtualization - but cloud computing
> also focuses on allowing computing to be delivered as a service.
> http://www.accelacomm.com/jaw/sfnl/114/51521223/
> _______________________________________________
> 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
------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
_______________________________________________
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
