Is a free command line tool that automates server-based PDF conversion for Microsoft Office 2007, 2010 and 2013 users. Office required
http://officetopdf.codeplex.com/
when using Office 2007 also need :
Visual Studio 2010 Tools for Office Runtime vstor40_x86.exe vstor40_x64.exe SaveAsPDFandXPS.exe
http://www.firedrive.com/share/F791A36B8A72D966-3F1C0587ED33CEC8-AAE2D900D050A244
origin - http://www.pipiscrew.com/?p=1313 office-to-pdf