On 24/08/2010 16:41, jimko wrote:
>
> I have already tried with this code... I don't know why but it return me a
> null object in "PdfDictionary action"... and the code thrown a exception in
> the row...
>
> Maybe I have done a bad # translation in c#... below my manipulatePdf code

This, in combination with your previous remark that you still see
the old button, gives me the impression that you are trying to change
a form that is built with XFA technology using AcroForm technology.

That's like trying to heat a meal with a fridge instead of with an oven.
Please check if your form is an acroform and NOT an XFA form.
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