STDUViewer is free and has a similar session manager as pdf x-change editor (EXCELLENT but costly... save window layouts with sessions+more options than stduViewer) ://uvviewsoft.com/uviewer/lister_plugins.htm
STDUViewer is free and has a similar session manager as pdf x-change editor (EXCELLENT but costly... save window layouts with sessions+more options than stduViewer) ://uvviewsoft.com/uviewer/lister_plugins.htm