A Visualizer or sometimes known as Document Camera is an extension arm of a projection system. When the user has a physical document or object to be projected onto the screen, a visualizer can capture the document/ object and project through the projector directly, saving on the hassle of scanning of saving the contents into a computer before it can be projected.

There are generally 2 categories of visualizers:

1. Portable Digital Visualizer

• Light-weight and compact
• Quick and easy to setup

2. Station Digital Visualizer