Here is a cheat sheet tutorial showing you how to root your Samsung Galaxy Pro 12.2 with Android 4.4.2

1. Download CF-Auto-Root and Odin v3.09.
2. Then put your device in download mode by holding the volume down, home and power buttons. When a warning prompt appears, you should then press the volume up button.
3. Unzip Odin v3.09 and then right click on the .exe file and run it as an administrator on your PC
4. Using the USB cable that came with your device, connect your Galaxy Pro 12.2 to your computer. After you have done this you should see the ID: COMM fields in the Odin application. If this doesn’t happen, then you should look at reinstalling the Samsung drivers on your actual PC
5. Within the Odin application, press AP and select the CF-Auto-Root-kltexx-smg900.tar.md5 file.
6. Make sure that Re-Partition is deselected, then check Auto Reboot and F. Reset Time.
7. Press start and that will begin the installation process. Do not do anything until this finishes.