Product Attachments for Magento 2 extension allows admins to upload various file attachments for customers to download.Main features of this extension:
Free to upload multiple types of downloadable data.
Admin can attach many files to a product and one file to many items.
Set the limitation for size of files and number of download.
Set the limit for size of files and number of download for each file.
Set the priority for uploaded files.
Product attachments can be decided to appear on product information tab or on a separate block.
Enable file attachments on footer.
Title of attachment tab and block can be customized.