I have a PDF document with a number of text fields, several of which have a
maximum length - namely, a maximum number of allowable characters.

Is there a way using iTextSharp to determine this setting? Here's the code I
have so far:

Dim reader As New iTextSharp.text.pdf.PdfReader("Foobar.pdf")
Dim inputFields As IDictionary(Of String,
iTextSharp.text.pdf.AcroFields.Item) = reader.AcroFields.Fields

For Each key As String In inputFields.Keys
    Dim PDFFieldName As String = key
    Dim MaxFieldLength As Integer = ???

    ...
Next

I need to set MaxFieldLength to the number of allowable characters for the
current form field being iterated over.

Thanks
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