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Adobe Reader: A program for viewing PDF files.
QIJIANYI's official document are PDF files, so you need a program which can view them. You can go to ADOBE website to get the program. The program is free to download.
The Portable Document Format (PDF) is the file format created by Adobe Systems in 1993 for document exchange. PDF is a fixed-layout format used for representing two-dimensional documents in a manner independent of the application software, hardware, and operating system. Each PDF file encapsulates a complete description of a 2-D document (and, with Acrobat 3-D, embedded 3-D documents) that includes the text, fonts, images, and 2-D vector graphics that compose the documents.PDF is an open standard, and recently took a major step towards becoming the ISO 32000. |
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