itextsharp and livecycle

I've managed to create a template (for an invoice) in livecycle. I've chosen dynamic PDF instead of static PDF because of a few fields that needed to autoresize (like address, product name).

Now I use itextsharp to complete the fields, and it works if I save the PDF as acrobat 7 dynamic xml form.

The problem is that the fields are editable. in order to resolve this in itextsharp I have to put formflattening = true, but then when I open my PDF I can't see any more the whole address for example, or the full text that made the field to expand.

Has anyone an idea how to make the PDF non-editable after I've set the fields开发者_运维技巧? if I use adobe reader pro to build the fields, they don't expand in order to accommodate the full length of the text.

In adobe livecycle make your form fields Calculated ReadOnly. This will prevent anyone from editing the form fields.