soul – Hyphenation for letterspacing, underlining, and more

Pro­vides hy­phen­at­able spac­ing out (let­terspac­ing), un­der­lin­ing, strik­ing out, etc., us­ing the TeX hy­phen­ation al­go­rithm to find the proper hy­phens au­to­mat­i­cally. The pack­age also pro­vides a mech­a­nism that can be used to im­ple­ment sim­i­lar tasks, that have to treat text syl­la­ble by syl­la­ble. This is shown in two ex­am­ples.
The pack­age it­self does not sup­port UTF-8 in­put in or­di­nary (PDF)LaTeX; some UTF-8 sup­port is of­fered by pack­age soulutf8