If you are using Apple’s iWork suit, you are able to password-protect your Pages, Numbers, and Keynote documents. Any document created by those productivity apps in iOS, macOS or iCloud webpage will be locked with the built-in encryption, thus other users cannot open or view it without having the defined password you create. Read through this post to know how to encrypt your sensitive files.
How to set up a password to encrypt your Page documents on Mac:
To change the password you create for a Pages, Numbers or Keynote document, click File > Change Password when the document is open. In the window that pops up, type the current password first, then input a new one, verify it, and click Change Password button to make the change take effect. To remove the password for the document, you still need to type the current password before clicking Remove Password button.
Note that a document can only have one password, and there is no way to retrieve the password if you forget it. And if your device has the Touch ID feature, you can use it to open your password-protected documents with your fingerprint alone.
How to set up a password to encrypt Page documents on iOS devices:
After the setup, if you try to open the document again, you will be prompted to enter the password. If you want to change the password, tap More icon again, select Change Password, and complete the required information in the new window. To remove the password, you just need to turn off the slider at the top for Require Password, enter the current password as required, and tap Done to save the change.
How to set up a password for an Pages document from the iCloud:
Now a secure symbol appears in the document’s thumbnail in the document manager. To change to remove it, head to Tools > Change Password and repeat the same steps.