Portable Document Format. PDF is one of the most commonly used formats for electronic documents. PDF is a digital form used to represent electronic documents, allowing users to exchange and view the documents easily and reliably, independent of the environments in which they are created, viewed and printed, while preserving their content and visual appearance.
The format enables:
preservation of document fidelity independent of device or platform,
merging of content from diverse sources,
collaborative editing of documents using multiple platforms,
digital signatures for authenticity,
security and permissions to preserve control over content,
accessibility of content to those with disabilities,
extraction and reuse of content for use with other file formats, and
gathering data and integrating it with business systems using PDF forms.