The custom bundle is in the articledeploy that bundle

We still recommend to use output or form service to merge data and generate pdf

Don’t know of any such software

 you need to select the first option and then upload pdf to populate the adaptive form with data from pdf

HiI have created a simple demo to illustrate the use case of starting with an adaptive form. Then you realize you are not able to complete the form online, so you download a PDF version of the form to be filled in offline mode using Acrobat/ReaderTo submit the form, you get back to the Adaptive Form...

this article shows you how to generate pdf on html5 form submission https://docs.mktossl.com/docs/experience-manager-learn/forms/document-services/generate-pdf-from-mobile-form-submission-article.html?lang=en

let me try something and get back to you

Are you setting the field to be invisible or hidden?

Please make sure the sub form in which your text field is located is set to flowed , instead of positioned 

Another solution https://experienceleague.adobe.com/docs/experience-manager-learn/forms/storing-and-retrieving-form-data/introduction.html?lang=en