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
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