xpdf.real(1) on Linux
The text a9fc76043abd, as Debian 10 (Buster) shipped it.
Portable Document Format (PDF) file viewer for X (version 3.04)
Flags it lists
-
-cmap -
-cmd -
-cont -
-fullscreen -
-h -
-level1 -
-q -
-quit -
-raise -
-reload -
-rv -
-v