NOTE: The scribbles feature is only available to use with PDF format books. If you are reading a textbook in another format, the TextbookHub reader toolbar will not display the scribbles button. 

Adding Scribbles

1. To start scribbling, click on the Scribbles button in the toolbar menu: 

2. Your cursor will transform into a pencil. You can choose the appearance of your scribbles by opening the Scribbles drawer. Here you can choose the scribbles pen width, ink colour, and ink opacity. Click and drag your mouse across an area of the page, so that a scribble appears.

 Erasing Scribbles

3. To erase your scribble, select the Eraser button from the toolbar menu 

4. Click and drag your mouse across the scribble to delete your scribble from the page.