Adobe ACROBAT READER 7.0 Manual page 20

Additional language support
The extended language support in Adobe Reader 7.0 allows you to view, search, and print
PDF documents that contain Central and Eastern European languages. Forms entry,
comments, and digital signatures are also supported in these languages. If you open a
document that requires the installation of additional fonts, you are prompted to install the
appropriate language font kit using the Check For Updates Now command.