I tried checking the FAQ, but it gave me a 404 - check for yourself - https://helpx.adobe.com/stock/help/FAQ.html
I downloaded a sled vector image that itself is only about 700x600 pixels and a whopping 15mb file size. I have a brand new computer with 16 gigs of RAM and trying to open it basically crashed my computer. I tried copying the image and putting it into a new file only to have it convert to a 35mb file.
The file is unusable to me. How can I unlicense it? Better yet, the image is perfect for what I'm looking to do so I'd rather have a usable copy of it.
It's a very cool image. Anyways, it is an Illustrator file. Be sure to open it in Illustrator to adjust it's size and do any edits. You can then convert to whatever format you need for your use.