How can I make my app more mobile friendly?

The application doesn't look good on mobile devices, how can I determine size adjustment and changes to make it fit mobile screen a.d not effect the web destop view thanks 

I understand that you want to make your form mobile responsive. Please refer to the guides below that can help you with making your JotForms mobile responsive.

https://www.jotform.com/help/311-How-to-make-forms-mobile-responsive

https://www.jotform.com/help/322-How-to-make-mobile-friendly-forms-on-JotForm

Thank you! 

Thank you for that but not exactly what I had in mind if you go to http://copticangels.com you will see what I mean the picture and signatures and everything need a bit of adjusting

May I know how you have embedded your form to your website page? Are you redirecting or you embedded it there? The website itself is not mobile responsive which makes the form in desktop mode even on mobile view.

Here's how you can solve this.

1. First, if it is possible, you need to set a viewport on your website page. Here's how: https://developers.google.com/speed/docs/insights/ConfigureViewport 

2. Add the Mobile Responsive widget in your form. Here's how to add a widget on your form: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-your-Form 

3. After that, setup the cover photo option like this:

4. Now add this custom CSS code in your Form Designer Tool:

.form-all:before {

    content : "" !important;

    background-image : url("https://www.jotform.com/uploads/coptsbook/form_files/StMarkFestivalapp.png") !important;

    display : inline-block !important;

    height : 300px !important;

    position : absolute !important;

    background-size : 100% 100% !important;

    background-repeat : no-repeat !important;

    width : 100% !important;

}

#input_2 img {

    display : inline-block !important;

    height : 100px !important;

    background-size : 100% 100% !important;

    background-repeat : no-repeat !important;

    width : 100% !important;

}

I hope that helps.