How to Share with groups of people
1 Find your people
You can use iCloud Drive to share files with multiple people. To do that, open the Files app, select a file – in this example we’re using a PDF – and tap the Share icon. You should now see Add People among the options in the bottom row.
2 Select the service
Now you need to choose how you want to send your sharing invitation. Mail and Messages are the most likely options, but you can also send it using third-party apps, such as Facebook’s Messenger, if you have one installed.
3 Set the options
Tap Share Options to specify whether the link that’s generated will work for anybody or just the specific people you’ve invited, and whether others can make changes to your document or if it should be read-only.