Embed PDF in Libreoffice writer

On Libreoffice I know how to add an hyperlink to a file or a webpage. I know is possible to add an hyperlink to a file on local system. I want a thing like this This text contain this [attachment] And attachment point to a pdf, or txt file inside the document (odt), so I can send the odt with file as attachment and me or another person can open it without the "need" to have the file in local fs. Like an email with attachment, is possible?