Are you tired from many viewers one for each document?
Created by STDU
STDU Viewer is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The most popular Linux alternative is Foxit Reader. It's not free, so if you're looking for a free alternative, you could try Okular or Evince. If that doesn't suit you, our users have ranked more than 50 alternatives to STDU Viewer and 18 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to STDU Viewer are FBReader (Freemium), MuPDF (Free, Open Source), zathura (Free, Open Source) and qpdfview (Free, Open Source).