support for typesetting the Icelandic language.
integrated development environments.
manipulating images for inclusion in documents.
index of referenced authors.
multiple indexes in a document.
process and/or generate index material.
support for languages of the Indian subcontinent.
input encoding support for TeX engines.
support for (La)TeX installations.
support for typesetting interlingua.
typesetting and calculating invoices.
manage TeX’s limited i/o streams.
support for typesetting the Irish (gaelic) language.
support for typesetting Italian.
documentation in Italian.