How to remove Admob Ads Using Apk Editor Pro

1) Select target app by clicking at 'Select Apk from App', then selecting 'APK Creator', and then click at 'Full Edit'.

(2) Click 'Resource' tab after editable resource shown, and then enter 'layout' folder by clicking at the item. Click 'activity_main.xml' and it will show the content of activity_main.xml. Scroll to the last line, change 
layout_height="wrap_content"
to:
layout_height="0dip"
And click save icon in the bottom to save the modification.
(Please note this just make the ad on main page invisible, but it's similar for other pages)

(3) For interstitial ad, please remove the AdActivity in AndroidManifest.xml: 
(4) After all the modifications, click save button in the upper right corner. After a while, we will be told that the modified apk is in some place