GSView is described as 'Use Ghostscript GSview to open PDF files with owner password restrictions. The Ghostscript-based PDF viewer disregards Adobe security settings. You can print a restricted PDF file, convert it to other formats, or extract text content and export it as plain text' and is an app. There are more than 10 alternatives to GSView for a variety of platforms, including Windows, Mac, Linux, Android and iPhone apps. The best GSView alternative is Ghostscript, which is both free and Open Source. Other great apps like GSView are Stellar Repair for PDF, QPDF, PDF Password Remover Tool and A-PDF Restrictions Remover.