# how to put \neq in bookmark

The not equal sign (`\$\neq\$`) becomes equal sign(=) in hyperref's bookmark. I know that `\texorpdfstring` will work for this, but I can not find `\textneq`, maybe another name?

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Does `\newcommand\textneq{\ensuremath{\neq}}` work? (i.e. put this in your preamble and then use `\textneq` in the bookmark? –  Seamus Jan 9 '11 at 15:24
This changes nothing. –  Ma Ming Jan 9 '11 at 15:29
Not all math symbols are available for text mode –  Herbert Jan 9 '11 at 15:36

Just use the actual ≠ symbol:

``````\texorpdfstring{\$A\neq B\$}{A ≠ B}
``````

You need to load `hyperref` with the `[unicode]` option for this to work.

Your source file also needs to be UTF-8 encoded.

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pdflatex get mojibake, xelatex OK. –  Ma Ming Jan 9 '11 at 18:25
@Ma Ming: I don't understand your comment. You don't need xelatex for this solution to work. What does 'pdflatex get mojibake' mean? Did the solution work for you? If so, please accept the answer. –  Alan Munn Jan 9 '11 at 18:37
@Ma Ming: you need to make sure that the encoding of your input file is UTF-8 (it seems that 'mojibake'=unintelligible characters). –  Alan Munn Jan 9 '11 at 19:45
Thanks, I figued out it. xelatex uses unicode by default. –  Ma Ming Jan 9 '11 at 22:03
`\texorpdfstring` is OK. `\neq` is ≠ (unicode 0x2260)