How to change Input textfields into under lines - Page 1

I am having a form which I need to convert into pdf. When form gets converted into pdf all the form fields remains editable but I need to make them disable, readonly or just replace with underline.

I am trying it over the example 3 provided with library. I just added few forms fields like labels, text fields and radio buttons.

Pls Help



Thank you

Hi,

Did you managed to solve your problem with this form to pdf cause I don't seem to get anything from mine so if you have some code to share just pm or put it here.
As for the one I made I took from the form exemple and added some fields however nothing happen to be converted to pdf once the form is submitted.