You will have write custom code to do thatnot possible out of the box. this article expects some AEM developer experience yhus article explains how to do thathttps://experienceleague.adobe.com/docs/experience-manager-learn/forms/document-services/generate-pdf-from-mobile-form-submission-article.html...

Not all actions will work in html preview and print button is one of them  the documentation on mobile forms lists the differences 

It’s best if we can have a callsend me a private message and we can discuss the options I work for Adobe

Which form buttons do you want to move to the top?the button in the xdp cannot be moved

The banner is part of html rendition of your template. I will not come when you are viewing it in pdf format 

I don’t think so it’s possible using JavaScript 

Hmm, ok we I will give you the name and path of the jsp file that can be modified 

I will send you something shortly

If you are using AEM Forms OSGI you need to upload the templates and they will reside in the crx repository under content/dam/forms and documents folder they do not reside inside the web logicif you were using livecycle and the xdp are in workbench then they will be residing in the file system

The pdf viewers that come with the browsers are not Adobe products and as such they may not support all the features