Firstly for a URL link to be created for each document – the document must be saved inside the File Repository - you can save inside a folder but our advice would be not to save inside sub folders.
You can create URL links for:
Images such as JPEG and PNG files
Part of the solution is done using the instructions contained in this link to create a URL link for each document:
Once a URL link is created this can be stored on an Excel file – which is then stored on the Files system (inside a folder) – allowing team members to access the documents via the spreadsheet using the URL link relating to each document instead of accessing the master copy.