📽️ Using Decks

Decks is a modern presentation application for the GNOME desktop. This guide covers creating and delivering presentations.

First Run

Launch Decks from the app grid:

flatpack run org.tunaos.decks

Or install via the TunaOS Flatpak remote:

flatpak remote-add --if-not-exists tuna-os https://tunaos.org/flatpak/tuna-os.flatpakrepo
flatpak install tuna-os org.tunaos.decks

Creating a Presentation

New Presentation

# Launch Decks — a blank presentation opens with one slide
# Ctrl+N for a new presentation

Adding Slides

Action	Shortcut
New slide	`Ctrl+M`
Duplicate slide	`Ctrl+Shift+D`
Delete slide	`Delete` (in sidebar)
Reorder	Drag slides in the sidebar

Slide Layouts

Choose a layout from the toolbar:

Blank — empty canvas for full customization
Title — title and subtitle text boxes
Title + Content — title with a content area
Two-Column — two columns for side-by-side content

Editing Slides

Adding Elements

# Text Box: Click the Text tool, then click on the canvas
# Shape: Click Shapes → choose rectangle, circle, arrow, etc.
# Image: Click Insert → Image → select file

Canvas Controls

Action	Shortcut
Select	`V` (move tool)
Move	Drag selected element
Resize	Drag corner handles
Delete	`Delete` or `Backspace`
Undo	`Ctrl+Z` (30 levels)
Redo	`Ctrl+Shift+Z`

Element Properties

Select an element, then use the properties panel:

Fill color — solid or transparent
Border — width, color, style
Text — font, size, bold, italic, color
Position — x, y coordinates and width, height

Transitions

Apply per-slide transitions from the Transitions panel:

Transition	Effect
Fade	Smooth crossfade
Slide	Slide from right
Convex	Curved slide
Concave	Curved reverse slide
Zoom	Zoom in effect
None	Instant cut

Presenting

Start Presentation

F5          # Start from beginning
Shift+F5    # Start from current slide

During Presentation

Key	Action
→ / ↓ / Space	Next slide
← / ↑ / Backspace	Previous slide
B	Black screen
W	White screen
Esc	Exit presentation
Slide number + Enter	Jump to slide

Export

Presentations export to multi-page PDF:

File → Export as PDF

File Support

Format	Read	Write	Notes
PPTX	✅	✅	PowerPoint format
ODP	✅	✅	OpenDocument Presentation
PDF	❌	✅	Export only (via Pillow)

First Run​

Creating a Presentation​

New Presentation​

Adding Slides​

Slide Layouts​

Editing Slides​

Adding Elements​

Canvas Controls​

Element Properties​

Transitions​

Presenting​

Start Presentation​

During Presentation​

Export​

File Support​

See Also​