Instance Method


Unlocks an encrypted PDF document when a valid password is supplied.


func unlockWithPassword(_ password: UnsafePointer<Int8>) -> Bool



A pointer to a string that contains the password.

Return Value

A Boolean that, if true, indicates that the document has been successfully unlocked. If the value is false, the document has not been unlocked.


Given an encrypted PDF document and a password, this function does the following:

  • Sets the lock state of the document, based on the validity of the password.

  • Returns true if the document is unlocked.

  • Returns false if the document cannot be unlocked with the specified password.

Unlocking a PDF document makes it possible to decrypt the document and perform other privileged operations. Different passwords enable different operations.

See Also

Working with an Encrypted PDF Document

var isEncrypted: Bool

Returns whether the specified PDF file is encrypted.

var allowsCopying: Bool

Returns whether the specified PDF document allows copying.

var allowsPrinting: Bool

Returns whether a PDF document allows printing.

var isUnlocked: Bool

Returns whether the specified PDF document is currently unlocked.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software