Is Office Online Server free, and does it require authorization?

Question

We are investigating Office Online Server and there are currently several licensing issues:

1. If only the query function is used and the editing function is not required, do I need authorization to be commercially available?
2. Do you need authorization if you need editing functions, and what is the quotation?
3. If you want to configure the parameters on the page, is there any documentation or technical support?

Answer 1

Based on your query, you can use Office online server to view office documents from browser. However, If you need edit options, you need to have commercial license. See the below text from the licensing document.
"
Microsoft Office Online Server offers view-only access to Office documents on an Internet browser. For
editing of Office documents, you need Software Assurance for an Office suite license acquired through
Commercial Licensing. The single primary user* of an Office licensed device can edit documents using Office
Online Server from any device, including those not licensed for Office. External users** don’t need an Office
suite license to view or edit Office documents on an Internet browser."

Refer ther licensing guide here: https://download.microsoft.com/download/3/D/4/3D42BDC2-6725-4B29-B75A-A5B04179958B/Licensing_Microsoft_Office_Software.pdf