I have tried the
itrans package, but was unsuccessful to achieve producing document with indian language (especially gujarati). The documentation of
itrans is not clear, at least to me.
Can anyone help me in this problem?
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You can use any ttf font in TeX using xetex. First you download and install any gujarathi font (for example -- Saumil_guj2, here you will find instructions on how to type those fonts also, check the bottom of the page).
Then write a tex file like this.
Compile this with xelatex.