Alternativer til Altarsoft PDF Reader til Xfce med open source-licens

• Xfce
  Alle platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone iPad Android Tablet Kindle Fire Windows S Web Firefox Opera BSD Xfce Haiku PortableApps.com Windows Explorer F-Droid Chrome ReactOS Qt
• Open Source-licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens