How can I implement a file download (by the buyer) when buying a product?

Question

WordPress

Tell me how you can implement the file download (by the buyer) when buying a product?
Maybe a plugin, if you know such please tell me.
The client will have to upload files for printing, such as business cards. Also, after paying for the goods by the client, I will have to see the files that the buyer uploaded in the wokomers.
It is necessary that the download be on the product page and not in the basket, and that you can specify for each product the maximum file size and the number of files to be downloaded.
As well as the exact size in millimeters (width and height) of the uploaded file.
Required formats: .TIF .PDF
This is not a simple task.

Answer 1

Have you looked at plugins? Come add a new plugin, write the word: upload and see which plugin is better. I don't use plugins myself, so I can't tell you which one is better.
Here, for example, "Easy Upload Files During Checkout" it says WOOCOMMERCE on the picture, so it might suit you, but as far as I understand, only 1 picture can be uploaded in the free version.