Handout
* A handout is a way to outline a presentation, or to take notes on minified pictures

Pictures
* A picture is an image or a pdf page that will be embedded into a handout pdf.

Assets
* An asset is a source image or pdf that will be used as pictures for a handout pdf.

Extensions
* An extension just means the extension of a file - file extension. For example, suppose one of our asset is asset1.jpeg, then the extension is jpeg.

Lines
* A line... just a simple black line. May be horizontal, vertical, diagonal or whatever is specified in the template (default templates only have horizontal lines)

TextFields
* A text box (in the handout pdf) where you can type inside it.