There are several ways to manage and display files in OpenScholar.

Managing files and images
How to browse and find your files

Adding inline files
Add a file in the body of a page

List of files
Tag files with taxonomy terms and display a list of related files automatically

Editing a File Name
Learn how to change file name in file form

Replacing a File
Learn how to swap out an old or outdated file for a new one

Removing a File
Learn to delete a file from your site

Creating an Accessible PDF File
See Adobe's instructions on how to make your pdf files accessible.

Accessibility, in this context, is the practice of making your website usable by as many people as possible, including those with disabilities.