lecturer – On-screen presentations for (almost) all formats

The pack­age cre­ates slides for on-screen pre­sen­ta­tions based on PDF fea­tures with­out ma­nip­u­lat­ing TeX’s type­set­ting pro­cess. The pre­sen­ta­tion flow re­lies on PDF’s abil­i­ties to dis­play con­tent step by step.
Fea­tures in­clude: – Free po­si­tion­ing of any­thing any­where in painted ar­eas on the slide, as well as in the main textblock; – Numer­ous at­tributes to con­trol the lay­out and the pre­sen­ta­tion flow, from TeX's prim­i­tive di­men­sions to the vis­i­bil­ity of steps; – Fea­ture in­her­i­tance from global to lo­cal set­tings, with in­ter­me­di­ate types; – Ba­sic draw­ing fa­cil­i­ties to pro­duce sym­bols, e.g., for list items or but­tons; – Colors, trans­parency, shades, and pic­tures; – Nav­i­ga­tion with links, pop-up menus, and cus­tomiz­able book­marks; – Easy switch be­tween pre­sen­ta­tion and hand­out; and – PDF tran­si­tions.
Be­sides the tra­di­tional doc­u­men­ta­tion, the dis­tri­bu­tion in­cludes vi­sual doc­u­men­ta­tion and six demo pre­sen­ta­tions rang­ing from ge­o­met­ric ab­strac­tion to clas­sic style to silly video game.
Lec­turer is de­signed to work with all for­mats, but presently fails with ConTeXt MkIV (be­cause of clashes in man­age­ment of PDF ob­jects, prob­a­bly), works only with pdfTeX and LuaTeX for the time be­ing, and re­quires texapi and yax, both v.1.02.