Hi Bolders,
Using DesignBold, you can create graphic designs with transparent backgrounds.
Doing so is straightforward. You just need to keep track of few pointers:
Before you render a design make sure that background is empty. It is where most of the users go wrong.
If the background has any color, even white. In that case, you would not receive an image with a transparent background. You get an image with a white background (or any other color that was there in the draft).
Hence, make sure that there is no image or background color overlay. If it is there, then you need to delete it to make the background empty.
Once you take care of this point, all you need to do is select the option of "PNG Transparent" and click download.
Voila! You will get your design with a transparent background.
Oh yes! I forgot to mention! The "PNG Transparent" feature is available only to PRO subscribers.
Have a look at the 1 Minute video below for the basic overview of creating an image with transparent background.
Happy Designing 
Regards
Don