pei yongyang Published Applications :

CAD Design - create and edit drawing files was removed
The most intuitive and straightforward office document editor available on the ios, makes it easy to open, view, create and edit Word (DOC & DOCX), Excel (XLS & XLSX), and PowerPoint (PPT & PPTX)...
PDF Converter - Convert PDF to Word was removed
CAD Expert enables you to view, edit, and share AutoCAD® drawings with anyone, anywhere using your mobile device. Annotate and revise drawings in the office, in the field, or in a meeting. Work on...
CAD Expert - for Floor Plans edition is the most powerful and user-friendly floor plan creation tool available for the iPad. Its intuitive, polished, and seamless interface makes creating floor...
+++++ Create and edit Microsoft Excel® (.xls and .xlsx) on your iPad/iPhone.

SpreadSheet Touch allows you to manage Excel and Microsoft Office Spreadsheet on your iPad. You can view,...