EasyCanvas

EasyCanvas allows you to use your iPad as a digital canvas or digitizer. You must install EasyCanvas program on Windows desktop as well as the app on your iPad so that you can write, draw, and paint on Windows programs using iPad touchscreen.

Even though this tool is designed to work on most of the Windows programs, some features many not be accessible in Adobe CC 2014 and previous versions. When you are not working, you can use EasyCanvas to mirror your desktop on iPad screen.

EasyCanvas Windows program is a freeware. But, you must purchase the iPad app to make use of this tool.