xpdf -V (return code: 1)
error: "version" file not found
xpdf -HELP (return code: 99)
xpdf version 3.04
Copyright 1996-2014 Glyph & Cog, LLC
Usage: xpdf [options] [<PDF-file> [<page> | +<dest>]]
-g <string> : initial window geometry
-geometry <string> : initial window geometry
-title <string> : window title
-cmap : install a private colormap
-rgb <int> : biggest RGB cube to allocate (default is 5)
-rv : reverse video
-papercolor <string>: color of paper background
-mattecolor <string>: color of background outside actual page
-z <string> : initial zoom level (percent, 'page', 'width')
-cont : start in continuous view mode
-freetype <string> : enable FreeType font rasterizer: yes, no
-aa <string> : enable font anti-aliasing: yes, no
-aaVector <string> : enable vector anti-aliasing: yes, no
-ps <string> : default PostScript file name or command
-paper <string> : paper size (letter, legal, A4, A3, match)
-paperw <int> : paper width, in points
-paperh <int> : paper height, in points
-level1 : generate Level 1 PostScript
-enc <string> : output text encoding name
-eol <string> : output end-of-line convention (unix, dos, or mac)
-opw <string> : owner password (for encrypted files)
-upw <string> : user password (for encrypted files)
-fullscreen : run in full-screen (presentation) mode
-remote <string> : start/contact xpdf remote server with specified name
-exec <string> : execute command on xpdf remote server (with -remote only)
-reload : reload xpdf remote server window (with -remote only)
-raise : raise xpdf remote server window (with -remote only)
-quit : kill xpdf remote server (with -remote only)
-cmd : print commands as they're executed
-q : don't print any messages or errors
-cfg <string> : configuration file to use in place of .xpdfrc
-v : print copyright and version info
-h : print usage information
-help : print usage information
--help : print usage information
-? : print usage information