Novell iPrint for Linux
Clicking the "Add From File" button within the iManager -> iPrint -> Manage Driver Store -> Drivers -> Mac page does not allow the ability to select Mac PDE drivers. PPD driver types are the only type allowed.
Novell is evaluating if/when the upload of PDEs will be supported.
StatusReported to Engineering
Print Dialog Extensions (PDEs) are a driver format which provides a way to add controls to the print dialog in Mac OS X. PPDs are the more common printer driver format. PPDs are support by iPrint.