How can I edit Office documents on an Android tablet and keep compatibility?
I have MobiSystems OfficeSuite 5 for my Android (phone, not tablet though).  But I have never had any problems editing files, saving them and then opening them in Office 2007 &amp; 2010.  It does not have a save as PDF, but it does let you save in either .doc or .docx formats for word, xls &amp; xlsx for Excel, and .ppt &amp; pptx for Powerpoint