Click on the blue SHARE button in the top right hand corner of the document window
Select the file permissions you’d like to give the person you’re sharing the file with by clicking on the permissions button located to the right of the email address entry box.
The three permission types you can give someone are as follows:
Can Edit - This person can edit whatever file you share with them however they cannot delete the file!
Can Comment - This person can view and comment on the file you’ve shared with them but cannot make any changes to the file.
Can View - Someone can view the file you’ve shared with them but cannot comment or edit the file in any way.
Enter in the email address/addresses of the person/people you’d like to share the file with.
Once you’ve entered in an email address a box will appear allowing you to type a note to the people you’ve shared the file with if you wish.