Ink Smoothing evens out small wobbles as you write with a pen, pencil, or highlighter. Give each tool its own level, or set one default for all of them.
Levels
Low: Small wobbles even out. This is the default.
Medium: More smoothing for steadier lines.
High: The most smoothing.
Set a Level for One Tool
Select a pen, pencil, or highlighter.
In the styling tray, tap the tool's style button.
Drag the slider to Low, Medium, or High.
Each pen, pencil, and highlighter keeps its own level.
Set the Default for All Tools
Navigate to Notability Settings › Note Editor › Handwriting & drawing > Stabilization.
Choose from Low, Medium, and High.
If a tool already has its own level, Notability asks whether to reset it to the new default or keep it.