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itrans is a package available in CTAN. Enable us to produce pdf files with two files <filename-pre.tex> and <filename.tex>. Itrans.exe converts <filename-pre.tex> into <filename.tex>. When we build and view <filename.tex> we will get pdf doc in Tamil. Unicode conversion.
itrans53.2
?itrans
compatible mappings for XeTeX. Maybe you could switch to XeLaTeX.itrans
, but you can use any OpenType font that supports Tamil with XeLaTeX.