What is a PDF file? What is it used for what are the benefits? Can give an example to say?

PDF (Portable Document Format) file format is an electronic document format developed by Adobe. This file format has nothing to do with the operating system platform, that is to say, PDF files whether in Windows, Unix or Apple's Mac OS operating system are common. This feature makes it in the Internet for electronic document distribution and digital information dissemination of the ideal document format. More and more e-books, product descriptions, company brochures, network information, e-mail began to use PDF format files. PDF format files have become the fact that digital information is an industry standard.

Adobe designed the PDF file format in order to support cross-platform, multimedia integration of information publishing and distribution, in particular, to provide support for network information distribution. In order to achieve this purpose, PDF has many other electronic document format can not be compared to the advantages of PDF file format can be text, font, format, color and independent of the device and resolution of the graphic images encapsulated in a file. The format file can also contain hypertext links, sound and moving images and other electronic information, support for extra-long documents, integration and security and reliability are high.

PDF files use industry-standard compression algorithms, usually smaller than PostScript files, easy to transmit and store. It is also page-independent, a PDF file contains one or more "pages", you can deal with each page separately, especially suitable for multi-processor system work. In addition, a PDF file also contains the document used in the PDF format version, as well as some important documents in the structure of the positioning information. It is because of the advantages of PDF documents, it is gradually becoming a new favorite in the publishing industry.

For ordinary readers, with PDF e-books produced with the texture of the paper book and reading effect, you can "realistically" show the original book of the original appearance, and the display size can be adjusted to give readers a personalized way of reading. As PDF files can not rely on the operating system language and fonts and display devices, it is easy to read. These advantages so that readers can quickly adapt to e-reading and online reading, is undoubtedly conducive to the popularity of computers and networks in daily life. Adobe's PDF file technology as the core, to provide a complete set of electronic and network publishing solutions, including for the generation and reading of PDF documents used to generate and the commercial software Acrobat and for the editing and production of PDF documents. Illustrator and so on. Adobe also provides for the reading and printing of Asian characters, that is, CJK characters required font packages.