Managing Documents on a Publication
Primary documents for a Publication can be added by clicking on the Add a File button. Find the files from your computer by clicking on Choose Files then click Upload. Once the files have been uploaded, select the files (your selection will be confirmed with a green check mark), then click Save. Your files will be successfully uploaded to the Publication.
To remove files from a Publication, hover over the file that needs to be removed and locate the Trash icon that pops up to the right of the file. Click the Trash and the file will disappear from the file list.