Hello,
I have to correct, what I have said:
Manipulation only the XFA-part of my form works with Adobe Reader,
but not with alternative readers like foxit. This is really a pity.
-----Ursprüngliche Nachricht-----
Von: Leonard Rosenthol mailto:[EMAIL PROTECTED]
Gesendet: 07.03.2008 16:21:47
An: Post all your questions about iText here
mailto:itext-questions@lists.sourceforge.net
Betreff: Re: [iText-questions] XFA-Forms with a PDF couterpart inside
On Mar 7, 2008, at 3:04 AM, Sérgio Oliveira wrote:
> Are you saying that when we open a Livecycle designer pdf file (xfa
> based pdf) in Acrobat Reader, the Reader will not "parse" the PDf
> but it will parse the xfa inside the pdf? So the pdf file could be
> a "dummy" empty pdf with only the real xfa structure?
>
That is EXACTLY what I am saying!!
You only need enough PDF structure to enable Reader to get to
the /
Catalog/AcroForm/XFA key - where it will find your XFA and then
ignore all the rest. You can see such "shell PDFs" by using
LiveCycle Designer 8.x (the version that comes with Acrobat 8) and
creating a dynamic form - it will create file just like that.
> If this is the point you were talking about, then it means that if
> one extrats the xfa from a dummy PDF file (empty without any
> object, only with a xfa structure) using iText; then change the xfa
> structure and finally inject the modified structure into the dummy
> pdf file again, then Reader will render it and show a new pdf file?
> (with the new modifications).
BINGO!! You now understand what I am saying...
> If this is true, then I don´t understand why Adobe didn´t abolished
> the PDF from the process at all.
Because PDF documents are something that users know about.
They
know what one is and how to use it. In addition, all the software
(OS, web browsers, servers, etc.) all know what a PDF is. If we
introduced a new file type (let's call it .xfa for example) - this
would be a new thing that wouldn't get handled correctly. There is
no reason for the average user to have to learn about XFA.
Leonard
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