page document with audio file not sent by email

Hello and blessed Christmas to everybody.

Here is my problem.

I created a pages documents with images and an audio file from iTunes inside.

Sharing it by Mail, (and converting it in PDF so that anybody without pages be able to open it) I see that the audio file is not present or not playing inside my mail.

Is this because of the conversion in PDF?

But I'm afraid of PC user not being able to see it if I let it in Pages.

Thanks for your tips.

Cathy