Hi i have a licence of Microsoft Office 2016 Profesional Plus, and in the MVLS (Microsoft Volumen Licensing) i downloaded the Office Online Server and install in the server, works fine integrating with my sharepoint2013 but. Do I have to have a new license for each of the company's employees so they can view and edit documents online?
Each user who needs to modify documents must have an Office license, via Software Assurance or via Office 365 subscription. View-only users do not need to have a license.
You can use User License Enforcement should you have users who need view-only and those who are licensed for edit functionality. The license for editing functionality is
More information can be found at the bottom of the official blog post - https://www.microsoft.com/en-us/microsoft-365/blog/2016/05/04/office-online-server-now-available/.