Adobe Acrobat 【Acrobat Reader】
Adobe Acrobat is an application developed by Adobe Systems, Inc which create and read PDF (Portable Document Files) files. PDF file format is very effective for use on the internet because it allows large quantities of information to be stored in small amounts of space. PDF can electronically distribute documents and the documents can be played with its original image kept almost perfectly, regardless of the type or environment of the computer used to open them.
Adobe Reader (formerly called Acrobat Reader) is available to download free of charge from Adobe's web site.