PDF files use industry standard compression algorithms, which are usually smaller than PostScript files and easier to transmit and store. It is also page independent. A PDF file contains one or more "pages", which can handle each page independently, especially suitable for multiprocessor systems. In addition, a PDF file also contains the PDF version used in the file and the positioning information of some important structures in the file. It is precisely because of its various advantages that PDF files have gradually become the new favorite of the publishing industry.
For ordinary readers, e-books made of PDF have the texture and reading effect of paper books, which can "realistically" show the original appearance of the original book, and the display size can be adjusted at will, providing readers with personalized reading methods. Because PDF files can be independent of the language, fonts and display devices of the operating system, it is very convenient to read.