C# Trying to get all fields from a PDF using ITextSharp returns 0 fields

Question

I have a PDF document that was obtained by converting a XSL-FO document to PDF using a XSL-FO to PDF render engine called fonet.

To convert XSL-FO document to PDF I did as explained here.

Now, I am trying to get all the fields in the PDF file using ITextSharp. To do this I proceed as explained here. However, in line af.Fields it returns 0 fields. Why?

There are XSL FO engines that support PDFForms, possibly you need to look into one that can create PDF Forms — Kevin Brown, Jan 04 '18 at 03:55

score 0 · Answer 1 · answered Jan 03 '18 at 15:16

0

fonet does not support forms. If you were to search through their documentation for the term 'form' you would find exactly 1 match.

In the sentence:

A variety of overloaded forms of Render are available.

If however you are already using iText, then why not simply use a tool like apache XSLT to convert your XSL-FO into HTML? Then you can use pdfHTML which converts HTML to PDF.

answered Jan 03 '18 at 15:16

Joris Schellekens

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Read [this chapter from the official documentation](https://developers.itextpdf.com/content/zugferd-future-invoicing/7-creating-pdf-invoices-comfort) to discover a Java example of what Joris is explaining. – Bruno Lowagie Jan 03 '18 at 15:17
Or choose an XSL FO engine that supports PDF Forms and not try a strange FO to HTML conversion which would still be missing form fields – Kevin Brown Jan 04 '18 at 03:56
@KevinBrown Do you know any XSL FO engine to convert to PDF that supports PDF Forms and free? – Willy Jan 04 '18 at 08:43

C# Trying to get all fields from a PDF using ITextSharp returns 0 fields

1 Answers1