I have a custom module with some form fields. I want to submit this form and generate pdf file of user filled values in new tab. I am trying with TCPDF but it doesn't display any fieldset ( as border ).
In submit funciton , I am taking $form array and using drupal_render($form) that render form values as html ( if I print ). If I pass this html to WriteHTML($html, true) , it gives pdf but there is no styling left on that form.