Not sure if this is the right forum, but I think it's something basic to do.

I want to have an option in my assets layout where the user has the possibility to upload a PDF and attach it to that asset.

I understand it is with a container field, but how do you make the container so a user can always upload files with no amount of files as a limit.

An asset can have many files uploaded to it, so how could I make this?

thanks for your help

You would have another table for the container records, related to its parent. Asset->Asset_Files by assetID.