Actually, there is NO REASON to create ANYTHING in the PDF page
content itself - just leave that totally empty. (In fact, Acrobat
will be MUCH HAPPIER if you don't create anything)
All you need to do is fill in the XFA XML chunks and you're all set.
This is true for both static and dynamic XFA.
Leonard
On Mar 9, 2007, at 7:32 PM, Mark Storer wrote:
> I would like to programmatically generate an XFA form with
> ImageField components. That is, form elements where images
> can be rendered. I can do this manually using Adobe Designer,
> but I want the form-generation to be driven by code.
> Is this possible using iText ? If so, how ?
In theory, yes... but you'll have to do the vast majority of the
heavy lifting yourself.
iText, as is, has high level APIs to get and set XFA field values.
And that's it.
You'd have to generate the XML yourself and add it to the
appropriate place in the PDF. You could use the PdfFormField class
to help you build the fields, but there's still quite a bit of work
to be done.
And if you want a /dynamic/ form, you're in for a whole new set of
headaches.
So you need to modify iText to allow you to write XFA, and then use
the relatively low-level PDF objects to do the rest.
Oh, and there's no such thing as a "NeedAppearances" flag in XFA
forms, so you need to draw all your appearances in the appropriate
places (values go in the annotation appearance dictionary,
everything else goes into the page contents).
And on and on. Structure, marked content, lions, tigers, and
bears. Oh My.
Yes, I have looked into implementing this... why do you ask? ;)
--Mark Storer
Senior Software Engineer
Cardiff.com
#include <disclaimer>
typedef std::Disclaimer<Cardiff> DisCard;
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