On Mon, 13 May 2013 02:57:39 +0200, Ripley Ryder <ripley_ry...@hotmail.com> wrote:

We currently have  more than 50 PDF's that are from different sources - so they each contain unique fields and company logos etc.

From your question, it's not clear if the 50 PDFs are interactive forms. By interactive forms, I mean that the PDF contains either an array of AcroForm fields (where each field has a unique name) or an XFA stream (XFA = XML Forms Architecture).

Please read section 6.3.5 from the following document to find out if the PDFs contain AcroFields (and if so: what are their names): http://www.manning.com/lowagie2/samplechapter6.pdf

Please try the XFA demo to find out if the PDF has an XFA stream: http://demo.itextsupport.com/xfademo/

 There is not a lot of consistancy in the names of fields across the PDF's 

This makes me assume that you have an interactive form.

My understanding is that each PDF will require the fields to be mapped. So that if there are 50 PDF's it requires 50 maps or templates?

This makes me doubt you have an interactive form.

In any case: if your PDFs have form fields, it's fairly easy to get these field names. Now you have to map them to whatever data structure you already have in your own system architecture.

I've browsed through the iText site and I've come across info on creating new PDFs but not auto populating existing PDF's. 

That's described in chapter 6 of "iText in Action - Second Edition." You can download that chapter using the link mentioned above.
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