Xodo: Using stylus as pen mode
By using a stylus as pen mode, you can freely handwrite or draw with your stylus, while using your fingers to access other tools or move and zoom in and out of the planner.
1. While on one of the file browsing tabs, tap menu button:
2. Tap Settings
3. Under ANNOTATING, enable Stylus as Pen mode by tapping the toggle bar to ON.