In the recent update to Adobe Sign, you folks have added a "simplified version" where you click to make the field appear (where the signer would sign).

My suggestion is to make this feature a click and drag OR a click. As it is right now, when you click, you get the same sized box every single time no matter how large the field you're placing it in is. If you were able to click and drag to place the boxes, you could custom size it to each field.