Understanding image file types in Prezi
There is no set maximum value for the size of a prezi. However, many years of experience tell us that a prezi can become too large for its own good. A prezi that has too much content will not run smoothly, and may eventually crash. It does not happen often, especially if you stick to the principles for image sizes.
Image sizes
Prezi recommends that you use images with a maximum size of 2800 x 2800 pixels. It is possible to insert images that are larger, but they may prevent your prezi from running smoothly.
If your prezi has images that you do not plan to zoom in on, a size of 1200 x 800 will look beautiful on any computer screen and fill it out without pixelating. Smaller image sizes also work well depending on how close-up you want the image to show.
Tip
When inserting a large image file, Prezi sometimes asks if you want to resize the image. If you do not need to zoom into the image, accept the resizing to keep down the size of your prezi. The proposed size for your image will be fine. If you need to zoom into the image when presenting, keep it at its original size.
File types for images
Prezi works with a large number of file types for your images. Each file type has its own characteristic, so check out the following list before you go looking for images.
Interesting image fact: Did you know that all images are actually square in shape?
Look at the cat in the following image. When we insert it on the Prezi canvas and select it, it is easy to see that this image (as with all images) is rectangular in its shape. While the cat is visible, the image background is invisible. This is called transparency when working with images. If the background is not transparent, it is typically white or black. Some file types can use transparency for their background, others cannot. Read on!
