Stop Losing Momentum: Get Transparent Exports Right So Your Visuals Hit Their Targets
https://spark-wiki.win/index.php/How_Three_Small_Creators_Solved_the_Product_Shot_Problem_Without_Photoshop
What You Can Produce in 30 Minutes: Ready-to-use Transparent Assets for Web, Apps, and Print By the end of this tutorial you will be able to export images with true transparency, choose the right file type for the job, reduce file size