Invisible frames help you organize your content without the added visual of a conventional frame. They are ideal for highlighting details on a large image or block of text. Invisible frames are also really useful if you want to present your prezi without setting a predefined path.
To add an invisible frame to your prezi, select ‘Draw Invisible Frame’ from the ‘Frames &Arrows’ option on the top menu.
Then click on the canvas and drag your cursor around the content you want to put in your invisible frame. Invisible frames appear with a faded blue outline.
Invisible frames can also be added to your prezi if you click on 'Add current view' when editing your prezi's path. This will generate an invisible frame based on the actual view that is currently filling your screen, and it will also add a step to your path.
Layer text and objects: send backward, bring forward
The ability to send objects backward or bring them forward allows you to layer items in your prezi. This is particularly useful when you have a frame around several items or a background image that overlaps with objects in your prezi. To Send Backward or Bring Forward, bring up the Transformation Tool by clicking once on the object you want to move forward or back and then right-click on it to access the secondary editing options.
If you are going to use a projector to present your prezis, you can plan ahead while you’re creating. Most laptops are widescreen, but most projectors use the 4:3 aspect ratio. To draw frames in this aspect ratio, hold down the SHIFT key while drawing a frame (bracket or rectangular) to keep it at the 4:3 ratio. Then you will know exactly how your prezi will appear when projected.