SOLIDWORKS Enterprise PDM Editor: Supports working with all file types. Users can add and modify files. CAD add-ins allow access to EPDM functions within supported CAD applications.
SOLIDWORKS Enterprise PDM Contributor: Users can perform the some actions as with the Editor license but add-ins are not enabled.
SOLIDWORKS Enterprise PDM Viewer: Allows read-only access to vaults, users cannot add or modify files.
Oh great thank you @Remrem, I should have waited for your answer before frantically clicking on buttons:)
In our case, we will probably have 35 EPDM Editor licenses (for the Design Office), 50 EDPM Contributor licenses (for the ancillary services that are part of the Workflow) and 10 EPDM Viewer licenses (mainly for the workshop)