Depends what you mean. Adjust window you want to correct size.

• Taking a screenshot (picture of screen/window):
  PrtSc or Alt+PrtSc copies screen/window to clipboard in Win and many Linux environments
  Cmd+Shift+Ctrl+3 or Cmd+Shift+Ctrl+4 in OS X (I think).
  (You need to save the clipboard to a file. Annoyingly procedures for this have changed in newer Windows versions, but pasting the clipboard to some graphics software and saving always works.)
• AND/OR Save and Compress (Ctrl+Alt+S) your SH3D plan.
• Upload files according to Hansmex' link above.

ok