The package, which works both for Plain TeX and for LaTeX, defines
the \ifPDFTeX, \ifXeTeX, and \ifLuaTeX
conditionals for testing which engine is being used for
typesetting.
The package also provides the \RequirePDFTeX,
\RequireXeTeX, and \RequireLuaTeX commands which
throw an error if pdfTeX, XeTeX or LuaTeX (respectively) is not
the engine in use.
If possible, get this package from your distribution using its installation manager. (For installation help, click on your distribution's name.)
| Distribution | Package name |
|---|---|
| MiKTeX | iftex |
| TeX Live | iftex |
You can also visit iftex's CTAN directory to browse the source or download the material for installation by hand.
| Documentation on CTAN |
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| Documentation off CTAN | -none known- | ||
| Maintainers |
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| Version | 0.2 | ||
| License | LaTeX Project Public License, version 1.3 or later | ||
| Related packages | |||
| Keywords |
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| Characterizations |
You can suggest changes to the keywords and characterizations and the maintainer information.
You can get information about any package.