質問
PDF Embed API. ReadOnly annotations

what does "unsupported" annotations mean? how to add them? I just need to highlight some text in pdf, can I do it somehow? how?

what does "unsupported" annotations mean? how to add them? I just need to highlight some text in pdf, can I do it somehow? how?
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.