Allow to merge some PDF documents to the generated PDF files. For examle, to add your conditions and terms into the PDF of an order, or to add a catalog of product into commercial proposals PDFs.

Objects that are supported (with version 3.7.2 or more of module):

• Customer proposals
• Customer orders
• Customer invoices
• Supplier proposals
• Supplier orders
• Supplier invoices
• Contracts

More information this wiki page.