Is it possible to get the document from the Library to attach it to an email?

Dear Experts,

I need to get a document from the Library to attach it to the "PDI BADI to provide attachment to email" enhancement, but I can't find a way to obtain the library file content. I use the QueryByElements of the Document object to retrieve the file from the name, but I can only get the UUID of the Document object. Is there any way to recover its content?

Thanks in advance,

Regards,

Janneth.