Photocopying is the process of making a duplicate of a document or image using a machine called a photocopier. This machine uses light, heat, and special chemicals to create a copy on paper. The original document is placed on a glass surface, and the photocopier scans it to produce an exact replica. The photocopying process is commonly used in offices, schools, and homes for various purposes, such as printing reports, handouts, or important documents. It is a quick and efficient way to share information without needing to rewrite or reprint the original material.