Attach PDF for sending email - SAPUI5

Hello Experts ,

I have some difficulties to do an attach of file in my page.

I use a standard app My PayStubs and did some changes like change the form and add a functionality to send salary proof.

But I have a lot of dificulty to attach the salary proof in email. I created a dialog with 2 fields, an email and message where message need to have a file.

Someone can tell how can I do this ? It's possible ritght ?

In my service I can obtain the PDF but then I can attac this PDF in my dialog.

Thanks for your time

Cristina Rodrigues