PDF (Portable Document Format) is fact standard of electron file. And Adobe Acrobat Reader is the best tool to scan, read and print PDF document. So technician should be familiar with PDF document. However to read PDF we must take use of special tool. Acrobat Reader by Adobe Company offers us superior tools.

　The process is popular and convenient tool compressing data. It’s allowable to pull and set free mouse or expand outer case. Also it supports ZIP document. Its inner process could set CAB, ARJ, LZH, ISO free and so on. You can apply ZIP and RAR to record and memorize data or information. High rate of compressing data is equipped. At window of Explorer you can operate easily and conveniently. ZIP or RAR could open primary document (DOS or WINDOW format). Click the attribute and know the compressing feature. In addition you can scan content at item of sort. New edition has added some function about information and data and set compressing system.