Provide two reasons why electronic images or documents, such as a PDF, can be useful.

What will be an ideal response?

·      Users can view electronic images of documents without the software that created the original document (e.g., PowerPoint). Specifically, to view a PDF file, you use a program called Acrobat Reader, which can be downloaded free from Adobe's Web site.
·      Sending electronic documents saves paper and printer supplies. Society encourages users to contribute to green computing, which involves reducing the environmental waste generated when using a computer.