A program for conversion between two different formats of PDT files: the SGML-based CSTS format (main format of PDT), and the FS format (required by some tools).
Perl scripts for conversion of PDT format to Penn Treebank-like format
Mostly Perl-based utilities converting dependencies into bracketed phrase structures and vice versa. You even can generate phrase structures in a format readable for the tree viewer.
Perl script for mapping Czech compact tags into Czech positional tags and vice versa