You can upload a PDF, or a sound or video or other file, and add it to a list by using the "File" option.

Drag a file into the box (or click the box and browse for the file), then wait for it to upload.

Any bibliographic information attached to the file should automatically upload. The quality and extent of this info varies depending on the source, so you will likely need to do some editing and adding.

If you own the copyright, you can indicate that. If not, the library will take appropriate steps to secure copyright clearance.

Select which section you want it to be added to, and click to "Add."