Customers would like to check every feature before buying anything and they want as much as information which guides them for each and every field of respective product. To fulfill this want of your customers, you can utilize the facility provided by Magento 2 Product Attachments extension of attaching different downloadable files to different products. This ensures that your product pages are highly informative that your customers can easily get all the detailed information and understanding of the products at one place. This also increase the convincing power which encourages the user to purchase.
The Complete Guide to "Magento 2 Product Attachments Extension" to boost purchases