---
title: "Pen tilt"
chunk: 1/1
source: "https://en.wikipedia.org/wiki/Pen_tilt"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T03:53:41.351949+00:00"
instance: "kb-cron"
---

Pen tilt refers to the angle of a writing instrument during handwriting and drawing, which can vary over time. In a coordinate system which is determined by the writing surface plane 
  
    
      
        {
        X
        ,
        Y
        }
      
    
    {\displaystyle \{X,Y\}}
  
 and the vertical pen-tip movement along the 
  
    
      
        {
        Z
        }
      
    
    {\displaystyle \{Z\}}
  
 axis, all three two-dimensional planes can be discerned, and the angular signals can be delivered by a digitizer. It is part of the ISO/IEC standard 19794-7 for biometric data in signatures.


== See also ==
Graphonomics


== References ==