Lever stores candidate documents in two areas:
You can consider resumes as documents you want visible to all interviewing parties. Resumes are accessible to all candidate followers and Interviewers who are included in a specific candidate's interview.
Files are documents that may be hidden from select candidate followers. Users with Interviewer access may also view files only if a candidate profile does not include any attachments in the resume section. Files that are hidden will be visible to Admins and the user who locked the file.
Files can easily be converted to resumes, and vice versa! Just hover over the attachment link and click Convert to File/Convert to Resume.