The size of your images is important because it will impact the quality of your overall presentation. Ensure that your images are as large as possible so that they have maximum impact for the end viewer.
The slide show window (available in some templates) has a minimum image size requirement of 960×360 pixels, but we recommend that you insert images up to 1920×1080 pixels.
When you look at the slide show in the condensed view any images larger than 960×360 will be cropped. However when you or an end viewer click or tap on the slide show in preview mode or at the conference, it will open up as an overlay and show all images at their full size.
Conference participants will then be able to flick through the slideshow as they wish. Having larger images will provide a more enjoyable and better quality viewing experience for them.