Sales Order Export Directly to Deal Attachment

Sales Order Export Directly to Deal Attachment

Currently when we export a sales order to our sale order template it is downloaded to the sales person's computer and then they have to manually add it to the Deal in the attachment related list so we can add it to Zoho Sign to send for a signature. I want to export the PDF directly to the deal. Can I do this within the CRM? Or with Zoho Flow?