Module files upload
This is public support for Files upload module. This is the most advanced addon that handles files upload process in prestashop. With this module your customers will have possibility to upload files to their customer accounts, to orders, to cart or to exact products they purchased. You - as an admin controls the way of how module will behave - what file format will be accepted (pdf, jpg, tiff, png etc. - there is no limits - you decide about it), what will be the maximum allowed file size etc. You can even turn on comments feature, approve files etc. Its definitely one from the most advanced file upload module for prestashop.