We are glad to announce that the new version 2.5.34 of PlugPDF SDK for iOS has been updated today. With it, now you can play Sound Annotations on your PDF pages by just tapping on them.
Nevertheless, in order to play sound resources the
AVAudioPlayer class must be used in
AVFoundation.framework in your project, the
Undefined symbols for architecture x86_64: "_OBJC_CLASS_$_AVAudioPlayer" error may be thrown as illustrated below.
To fix this error please add
AVFoundation.framework into the Link Binary With Libraries list which is located in the Build Phases tab.
Once the framework has been added, it will appear in the Link Binary With Libraries list.
This will fix the
Undefined symbols error.