Why do they want the draft orders in WordPerfect?

In the "Administrative Procedures for Filing, Signing and Verifying Pleadings and Papers By Electronic Means" for the W.D. Va., one proviso is that draft orders can be sent to the judges by e-mail but they must be in WordPerfect format and cannot be in PDF format - "All proposed orders must be submitted in a format compatible with WordPerfect, which is a 'Save As' option in most word processing software. Judges will not accept proposed orders in .pdf format."