Pages for iOS (iPhone, iPod touch): Password-protect a document
You can assign a password to a document so that only those who know the password can open the document.
Require a password to open a document
Passwords can consist of almost any combination of numerals, capital or lowercase letters, and special keyboard characters.
Tap , tap Set Password, enter the requested information, then tap Done.
When you open a password-protected document, you can turn on “Remember this password” so you don’t have to type the password each time you open the document.
If you add a password after you share a document, be sure to notify collaborators.
Change or remove a password
Change a password: With the document open, tap , then tap Change Password. Enter the required information, then tap Done.
A document can have only one password, so if you change the password when you share the document, that becomes the document’s only password.
Remove a password: With the document open, tap , then turn off Require Password. Type the old password, then tap Done.
Passwords apply to documents when you share them using iCloud, so your collaborators need the password to open the document. A document can have only one password. If you change the password when you share the document, that becomes the document’s only password.
When you add or change a password, the password applies only to versions created after the password was added or changed. To prevent others from restoring unprotected versions or versions with older passwords, stop sharing the document, add a password to it, then share the document again.