You can open it with your palm.
PDG file is a superstar digital book, which was opened with superstar digital book reading software.
The full name of PDF is Portable Document Format, which is an electronic document format developed by Adobe. This file format has nothing to do with the operating system platform, that is, PDF files are common in Windows, Unix and Apple's Mac OS operating systems. This feature makes it an ideal document format for electronic document distribution and digital information dissemination on the Internet. More and more e-books, product descriptions, company announcements, online materials and e-mails begin to use PDF files. At present, PDF file has become the de facto industrial standard of digital information.