Can't convert to PDF | "Missing PDFMaker files" error
Issue
When you right-click a Microsoft Office file to convert to Adobe PDF, the application returns the message "Missing PDFMaker files." The application doesn't create a PDF file.
Solution
Remove Adobe PDF From the Disabled items list in the Microsoft Office application.
1.Open the Microsoft Office application (Word, Excel, Publisher).
2.Choose Help > About [the application name].
3.Click Disabled Items.
4.Select Adobe PDF from the list, and then click Enable.
5.Quit the Microsoft Office application, and then restart it.
ref : http://helpx.adobe.com/acrobat/kb/convert-pdf-missing-pdfmaker-files.html