Dropbox allows you to grant other people the ability to edit documents in shared folders within both the desktop and mobile apps. Anyone with "edit access" can view, edit and comment on a shared file. All changes made to the file will be shared with everyone who has access to the shared folder. Here's how to grant someone edit access in the iOS app on the iPhone:
- Find the folder you'd like to share in the iPhone app.
- Tap the downward arrow.
- Tap Share.
- Enter the email addresses of the people you'd like to have edit access.
- Select the These People option, then select Can edit.
You can also enter a personal message before hitting Send.