Presenting with Decker
A Guide to Creating Memorable Presentations
September 22, 2025
Samantha Monty
Chair for Human-Computer Interaction, University of Würzburg

Table of Contents

Decker Menu

img/menu.png
Decker Menu

Access

Click the icon in the upper corner of the slide for a list all slides in the presentation. Click to jump to a slide.

Whiteboard

Write directly on slides using the Whiteboard. To activate, start presenter mode (type ppp or click ). This will show the whiteboard icon . Use that to open/close the menu for whiteboard tools.

Icon Tool Description
Download Save your annotations in a .json file to load into the presentation the next time.
Auto-Save Toggle automatic save on and off.
Grid Display a background grid on the whiteboard.
Add Page Add a slide for additional drawing space. Scroll down to reach added the new slide.
Undo Undo the last action.
Pen Change the cursor to a colored dot to draw on the slide. Click again to select a color.
Eraser Change the cursor to a grey circle to erase lines.
Laser Change the cursor to a red laser dot for improved visibility.

Overview

The overview mode allows you to view an overview of your presentation, with your slides displayed as thumbnails. Press the ESC or O keys to toggle the overview mode on and off. While you’re in this mode, you can still navigate between slides.

img/overview.png
Overview mode

Speaker Notes

Speaker View

Press s to open the speaker view for the presentation. View the current and upcoming slides, speaker notes and a timer.

Speaker Notes

Add notes to a slide using the following syntax:

# Notes {.notes}

In this slide you see ...

img/speaker.png
Speaker Notes

General Keyboard Shortcuts

  • →, ↓: Next slide
  • ←, ↑: Previous slide
  • B, .: Pause (Blackout)
  • F: Fullscreen
  • ESC, O: Slide overview / Escape from full-screen
  • R: Toggle screen recording mode
  • S: Speaker notes view
  • V: Toggle camera

  • ZZZ: Stop recording
  • ?: Show keyboard shortcuts
  • PPP: Toggle presenter mode
  • AAA: Toggle accessibility features
  • ctrl F: Open search bar
  • Shift ←: First slide
  • Shift →: Last slide

Additional Keyboard Shortcuts

Whiteboard

  • ppp: Toggle presenter mode
  • delete: Clear slide
  • L: Toggle laser pointer
  • W: Toggle whiteboard
  • 1 - 7: Change pen color
  • 8,9,0: Change pen radius

Explain

  • M: Toggle mute
  • R: Toggle recording
  • ZZZ: Stop recording
  • V: Toggle camera

Audience Response Polls

  • C: Toggle QR code
  • A: Toggle poll
  • T: Toggle results