1.1 gigs? – Briefcase Pro - File manager, cloud drive, document & pdf reader and file sharing App Review

I only have one PDF file in my founder and Apple says it's taking up 1.1 gigs? Where? I can't see any other files? Is it in cache? There is no way to clear. No files are synced. I'm totally confused.
Review by djphatjive on Briefcase Pro - File manager, cloud drive, document & pdf reader and file sharing App.