Android 9-patch shadow generator fully customizable shadows
免费FCPX资源下载网站
Viewport Sizes and Pixel Densities for Popular Devices
基本上80%都是免费的
Optimize your images with a perfect balance in quality and file size.
可签到获得积分下载Pr模板
create QR codes for free (Logo, T-Shirt, vCard, EPS)