PDMworks Contributor vs Viewer

I am setting up PDMworks and the vault at work and someNon-SW users need to access the drawings we are producing(Production Managers, VP of Production) to get quotes.

Can Viewer allow Non-SW users to access and print SW files or doesContributor only have that capability. They want to use SWExpolorer and add-on PDMworks Contributor or Viewer.

Oh and does each one require an additional licence.SolidworksWorkgroup Pdm