To integrate your presentation (PowerPoint/PDF/Keynote/Google Slides), simply click on the corresponding button in the main interface.
You will then be able to place votes within the flow of your slides.
Here are the steps to follow to do so:
1) Click on “Configure”
2) Click on the green “+” icon where you want to insert a question (between two slides).
3) Select the question you want to insert
4) After saving your changes, simply click on “Start” next to your presentation. Your votes will now be automatically displayed on the participants’ screens at the right moment in your presentation.