Best drawing viewers around. – Blueprints with LargeViewer Review

I'm very happy with this app, I use it to view construction drawings, I have more than 1000 sheets in my current project organized as one PDF per discipline. The app handle these big PDFs quicker than my core i7 laptop with acrobat reader. My only problem with this application is that there's no way to make annotations, like in others PDFs apps.
Review by csilvaa on Blueprints with LargeViewer.