Let me be honest, I have mixed opinions on the Jetpack plugin for WordPress. It contains a lot of features that might have been better as independent plugins and it is kind of bloated. However, a lot of the features are very useful and therefore it is hard to ignore the plugin all together. So actually, I use it on most of the sites I make.
The Jetpack Contact Form
One of the features I like, is the ability to easily insert a contact form in any post or page. The only thing that bothers me is the text (the value) on the submit button. It is per default set to “Submit” and there are no clues on how to alter that text. There is an easy way to alter the value, however.
The contact form is inserted in your post with a shortcode which looks like this:
[contact-form subject='Some subject' email@example.com'][contact-field label='Name' type='name' required='1'/][contact-field label='Email' type='email' required='1'/][contact-field label='Comment' type='textarea' required='1'/][/contact-form]
So what you need to do, is add the parameter
[contact-form]. Like this:
[contact-form subject='Some subject' firstname.lastname@example.org' submit_button_text='Your custom submit text here']
That way, You are able to decide what your buttons are going to say.