I'm sure that Corel is just fine. I haven't used that one. There are so many out there.
I was just checking to see if you were using one that I was familiar with, I'd see if I could teach you how to make the background transparent with it. Just sort of fun to have the background blend with the page on some clipart. Like the sheep vs. the lemonade stand. Sorry but I don't think I can help you with Corel.