Portable Document Format (PDF) is an unstructured file format created by Adobe Systems in 1993 for document exchange. PDF is designed to represent a variety of document types reliably and accurately regardless of the underlying application, hardware, or operating system. PDFs are often used for sharing of documents such as product brochures and user manuals, which typically are low risk. PDFs can also be used for sharing billing statements, health care treatment plans, business contracts, and other highly personal and sensitive information.
