mi­crotype – Sublim­i­nal re­fine­ments to­wards ty­po­graph­i­cal per­fec­tion

The pack­age pro­vides a LaTeX in­ter­face to the mi­cro-ty­po­graphic ex­ten­sions that were in­tro­duced by pdfTeX and have since also prop­a­gated to X∃TeX and LuaTeX: most promi­nently, char­ac­ter pro­tru­sion and font ex­pan­sion, fur­ther­more the ad­just­ment of in­ter­word spac­ing and ad­di­tional kern­ing, as well as hy­phen­at­able let­terspac­ing (track­ing) and the pos­si­bil­ity to dis­able all or se­lected lig­a­tures.
Th­ese fea­tures may be ap­plied to cus­tomis­able sets of fonts, and all mi­cro-ty­po­graphic as­pects of the fonts can be con­fig­ured in a straight-for­ward and flex­i­ble way. Set­tings for var­i­ous fonts are pro­vided.
Note that char­ac­ter pro­tru­sion re­quires pdfTeX, LuaTeX, or X∃TeX. Font ex­pan­sion works with pdfTeX or LuaTeX. The pack­age will by de­fault en­able pro­tru­sion and ex­pan­sion if they can safely be as­sumed to work. Dis­abling lig­a­tures re­quires pdfTeX or LuaTeX, while the ad­just­ment of in­ter­word spac­ing and of kern­ing only works with pdfTeX. Let­terspac­ing is avail­able with pdfTeX or LuaTeX.
The al­ter­na­tive pack­age `let­terspace', which also works with plain TeX, pro­vides the user com­mands for let­terspac­ing only, omit­ting sup­port for all other ex­ten­sions.