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PSPDFSignatureStore
Objective-C
@protocol PSPDFSignatureStore <NSObject, NSSecureCoding>Swift
protocol SignatureStore : NSSecureCoding, NSObjectProtocolAn object that stores signature annotations.
You can implement this protocol and set the object as the PDFConfiguration’s signatureStore to use your own backend for saving and loading the user’s signatures.
The store must support NSSecureCoding because the store is part of the PDFConfiguration object. If your store requires any identifiers such as a store name or a username, ensure these are serialized and deserialized.
If you want a simple on-device store, PSPDFKit provides KeychainSignatureStore, which implements this protocol.
-
Add a signature to the store.
The new signature should be included in any future calls to
signaturesbut your implementation is free be insert the new signature in any position, such as at the start or end.Declaration
Objective-C
- (void)addSignature:(nonnull PSPDFSignatureContainer *)signature;Swift
func addSignature(_ signature: SignatureContainer) -
Remove a signature from the store.
The signature should not be included in any future calls to
signatures.Declaration
Objective-C
- (BOOL)removeSignature:(nonnull PSPDFSignatureContainer *)signature;Swift
func removeSignature(_ signature: SignatureContainer) -> Bool -
Access the saved signatures (
SignatureContainerobjects).This property may be set when the user reorders the signature list. Reading this property must preserve the order that was set.
Declaration
Objective-C
@property (nonatomic, copy, null_resettable) NSArray<PSPDFSignatureContainer *> *signatures;Swift
var signatures: [SignatureContainer]! { get set }