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Fabric.js Textbox fontStyle Property

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  • Last Updated : 19 Jan, 2021

In this article, we are going to see how to change the font style of a Textbox canvas using FabricJS. The canvas means Textbox written is movable and can be stretched according to the requirement.

Approach: To make it possible we are going to use a JavaScript library called FabricJS. After importing the library using CDN, we will create a canvas block in the body tag which will contain our Textbox. After this, we will initialize instances of Canvas and Textbox provided by FabricJS and use the fontStyle property to change the font style and render the Canvas on the Textbox as given in the example below.


fabric.Textbox('text', {
    fontStyle: string

Parameters: This function accepts one parameter as mentioned above and described below:

  • fontStyle: It specifies the font style which can be normal, oblique or italic where normal is the default style.

Example: This example uses FabricJS to change font style of a textbox canvas.


<!DOCTYPE html>
    <!-- Adding the FabricJS library -->
    <script src=
  <h1 style="color: green;">
      Fabric.js | Textbox fontStyle Property
  <canvas id="canvas" width="600" height="300" 
      style="border:1px solid #000000">
      // Initiate a Canvas instance 
      var canvas = new fabric.Canvas("canvas");
      // Create a new Textbox instance 
      var text = new fabric.Textbox(
          'A Computer Science Portal', {
          width: 500,
          fontStyle: 'italic'
      // Render the Textbox in canvas 


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