
Web pages are predominately marked up in HTML, these are then displayed through browsers such as Safari, Internet Explorer or Mozilla Firefox.


They do not encode information that is specific to the application software, hardware, or operating system used to create or view the document. A PDF file can be any length, contain any number of fonts and images and is designed to enable the creation and transfer of printer-ready output.Įach PDF file encapsulates a complete description of a 2D document (and, with the advent of Acrobat 3D, embedded 3D documents) that includes the text, fonts, images and 2D vector graphics that compose the document.

PDF is a file format developed by Adobe Systems for representing documents in a manner that is separate from the original operating system, application or hardware from where it was originally created.
