[**中文教學**](/c/tutorials-tw/%2Fs%2Finvite-tw) # Invite Others to a Private Note Invite trusted people to collaborate on your private note from the <i class="fa fa-share-alt"></i> **Sharing** menu. >[!Note]Hint >- Invite people with their **username** or **email address**. HackMD will invite them through email if the invited haven't registered. >- The default limit for editing permissions on notes is 3 people. If you upgrade to the HackMD Prime Personal Plan or Team Plan, you can enjoy an unlimited number of editors! ![Invite others to a private note](https://hackmd.io/_uploads/B1vC8xgwA.gif) &nbsp; # Permissions Invited users could have different permissions as needed: | Invitation | Permissions | | -------- | -------- | | Read | Invited users can only read the note. | | Write | Invited users can read and write. | | Admin | Invited users can read, write, manage other users, and assign note Host. |