I found the answer, as can be read in: LiveCycle Help / Frequently Asked Questions (FAQ) > Scripting"XFA Draw element-specific scripts such as changing the Draw text (or Caption text in case of fields) are not supported."

Working with AEM Forms JEE 6.1 / Designer AEM Forms.In the PDF version of the form, at times I need to change (at runtime) a field label. If the XDP are rendering as HTML5 nothing happens ... the new label value is assigned but not displayed.Any idea how I can make the change is reflected in the UI?

This issue was open six years ago!And no , I never knew the cause of the problem.

I determined when this happens.I have several forms that use "app.launcURL (...)", several years and just the installation of Adobe Reader X users have begun to have different problems.Some say they are redirected to a page in Adobe, others just the browser opens but is blank, is not going to any pa...

HelloI need to know how I can validate if a date is correct or not, and on failure to do something.I have a DateTime Field field, with a pattern 'DD / MM / YYYY', the value is correctly displayed using the chosen pattern, the problem is validation.Now I just want that if the date is wrong, teaches a...

Thanks PaulBut this is not exactly what I need.I need to do something like:var xml= xfa.host.exportData("", false);and not really export the XML.¿Is possible? ¿any idea?Thanks!

Is it possible from within a PDF form, using JS get / know XML data of the current form? I need to get the same XML data that would be generated with "export data" feature of Adobe Professional.Thx! 

I understand that it is wrong to solve complex, as happens in very special circumstances. I still can not solve the problem ... Does anyone have any idea?

I was able to determine that the error occurs only when: 1. The PDF is extended with Adobe ReaderExtensions (7.2 in this case).2. Introduces some value in the PDF. If you follow the two steps, and after go file menu and save (File> SaveAs), the error occurs. If I omit extends PDF (ReaderExtensions) ...

Hi PaulThe error occurs both with Acrobat and Reader. If you look at the 1st picture (above), you will see that the PDF has been extended (with ReaderExtensions), which allows customers to use Reader to fill the form.Thx.Any other idea?