How do I set up Acrobat XI Pro so PDF text in Spanish does not get the Spanish accents mangled when converting to

I am using Windows 7 and MS Word 2010 Version 14.0.7116.5000 (32 bit). My Acrobat XI Pro is Windows, English.

The PDF Spanish text after converting to Word converts a vowel with an accent or tilde as an f or other consonant. The Spanish word "género" gets converte to "genera". I am a new user and do not know if and how you need to set up some type of recognition table for Spanish language in Acrobat XI Pro so PDF accented vowels will show up correctly after they are converted to Word. Thanks for any help,
VAM

Vicente A. Molinos