Company Truong Nguyen Ngoc created these great apps:
PerfectReader Pro - PDF & Document Reader for Adobe Acrobat & Microsoft Office, PerfectReader Classic - Beautiful PDF Reader with Unique Text Reflow, Sepia/Night/Daytime reading modes, plus High-quality Text To Speech (Free version), Top 80 Classic Books - The free collection of the 80 best classics of all the time, PerfectReader 3 Lite - Free PDF & Document Reader for Adobe Acrobat & Microsoft Office, TOEFL Grammar Review for Vietnamese, Master in 24h for Microsoft Word 2010, Master in 24H™ for Microsoft® Excel® 2010, Master in 24h for Microsoft Office (Word, Excel, Powerpoint, Outlook, Access, OneNote, Publisher), PerfectReader Classic - Beautiful PDF Reader with Unique Text Reflow, Sepia/Night/Daytime reading modes, plus High quality PDF Text To Speech, nextPDF Pro - Premium PDF Reader, Annotator & Form-Filler, and others..