I am noticing that adobe echosign is setting default minimum height and width using pixels while generating the Iframe for Personal Embedded widgets. I checked the below link (& other REST api documentations) and can't find a property to tell echosign to render the widget in a scalable mode according to width/height dimension of the device as in mobile, tablets or PC.
Api Documentation-> https://secure.na1.echosign.com/public/docs/restapi/v5#!/widgets/createWidget
Adobe EchoSign default Iframe Render setting->
<iframe src="******" width="100%" height="100%" frameborder="0" style="border: 0; overflow: hidden; min-height: 500px; min-width: 600px;"></iframe>
How to tell echosign REST api to dynamically adjust it's Iframe size?