AssemblySys dataServices That's when I decided to use the GD library, which I had found very useful in other projects. I'm not saying that this solution is perfect or better that others, but it has worked very well for me, and I hope it will be useful to some of you as well. Feel free to contact me if you have any comment about this code. GDを使って角丸画像を作成するサンプルが掲載されています。 これを使ってWEBベースの画像角丸変換サービスが簡単に提供