WooCommerce Attach Me GPL Overview:

WooCommerce: Attach Me! is a woo commerce plugin that allows Shop Managers to connect files to your client’s orders. Attach Images, documents, videos, and proofs… no limits!

Furthermore, the Shop Managers can also:

1. Attach documents to merchandise (like manuals, documents, etc.). These archives are routinely reachable to download on the product pages and the order small print web page after the clients have bought them (and optionally seen solely if the order has reached a unique status)! You can additionally specify an Expiring time (only for order attachments)!
2. Create automated e-mail attachments: despatched when a particular order reputation e-mail is despatched via WooCommerce.