Is it possible to make some invitees unable to edit the content in the documnet?

[Kathy Fournier]

I am trying to use Trello for an information board for particpants in a workshop. I would prefer that they not have access to changing the content, accidentally or purposefully. 

[Matthew N · Accepted solution]

Hey Kathy

If you're a Business Class user (or if you're not, you can upgrade a 1-user team with that user being yourself), you can add members to a board as observers. Observers can only view a board, nothing else unless you turn on the ability for them to comment or vote.

Otherwise, the only option would be making the board public- which may have it's drawbacks if the information shouldn't be known by the general public.