The Tools Menu contains two items
Unknown Characters Editor…
The Unknown Characters Editor… window will appear when you open a PDF file that contains unknown glyphs. This window gives you an opportunity to replace the unknown glyphs so that your converted PDF will contain legible text. If you skip replacing unknown characters, all unknown characters will be replaced with tildes (~)
The Scripts Installer item allows you to bring up the Scripts Installer window. This is useful if you have disabled the *Launch when scripts available *checkbox on the Scripts Installer window.