Did you try converting a PDF file to a Word document (.docx or .dox) with our ExportPDF service? Is that when you received 'jibberish'? Or did you use our Adobe Acrobat application to try to convert your PDF file to a Word document?
We'd like to try to help you get to the bottom of this!
Disabling OCR may help improve the quality of the conversion. You can find instructions here: Disable Optical Character Recognition (OCR) when converting PDF to Word or Excel (Reader XI)
Please let us know how it goes.