When you use Adobe Acrobat Reader 5.x or an earlier version of Acrobat Reader to open a Portable Document Format (PDF) file in Windows Vista, the MS Gothic font and the MS Mincho font appear garbled.
Acrobat Reader Font Appear Garbled Gothic and Mincho
To work around this problem, upgrade to Acrobat Reader 6.0 or to a later version of this program.
Windows Vista uses new MS Gothic and MS Mincho fonts that Acrobat Reader 5.x and earlier versions of Acrobat Reader cannot read correctly.