Is the "Click to sign" tooltip editable?

[Joel Cherney]

I've recently formatted the translation of a form into 5 languages, and my client notes that I've added translated tooltips to all of the form fields, but the signature field still has the words "Click to sign" in English. I suspect that this is part of the Adobe Sign infrastructure, and there' s no way for me to change this "Click to sign" text. Am I incorrect? Is there a way to change "Click to Sign" to custom text I input myself in Acrobat? Or, alternately, a way to mark this field as Vietnamese, or Arabic, or Russian? 

[Joel Cherney]

Another client has popped up in my inbox telling me that they're very happy with the translated tooltips in their Acrobat form, but why didn't I translate the words "Click to sign" in the signature field? Is it something that derives from Adobe Sign? Or is there some way to get at this tooltip from within Acrobat?