I downloaded and dd latest image of Raspbian Pixel on sdcard of Raspberry Pi 3. I activated VNC interface from Menu> Preferences> Raspberry Pi Configuration. Raspberry Pi is connected to the wifi and I access it on my iPad mini using VNC Viewer app. Also no HDMI is connected to Pi.
Now the problem is I only get resolution of 656x416 which is too small for doing stuff. Since I didn't manually edit any file using terminal, I don't know how to increase it. I think I need to edit a vnc file and pass parameters. Please help me fix resolution.