Please use the PowerDesigner link.

The PowerDesigner download link will start or launch the vendor software form.

Sybase PowerDesigner is an all-in-one modeling and design solution for enterprises who need to build or re-engineer business applications quickly, cost-effectively, and consistently. PowerDesigner removes the obstacles the stand in the way of effective development projects: different skill sets, multiple platforms, and the plethora of development languages that exist in most enterprises.