[tex-live] pdfTeX and ToUnicode CMaps

[Werner LEMBERG]

> > How comes that this feature is neither mentioned in the NEWS file
> > nor in the documentation?
> 
> It was presented by Han at EuroBachoTeX 2007:
>   `Font-specific issues in pdfTeX'
>
> (I don't know whether slides exist on-line, via google I only found
> a non-existing pdf file, but at least google's html view was
> available.)

Hmm.  This isn't a replacement for documentation.  IMHO, it *must* be
mentioned in the NEWS file (perhaps in the `experimental' section'.

> I think there are unsolved issues. Now there are two methods
> for adding CMaps:
> (a) \pdffontattr, package cmap

I use this in my CJK package too.

> (b) \pdfgentounicode, glyphtounicode.tex
> 
> Both methods have its limitations, e.g. (b) only works for Type 1
> fonts.  Thus you could need both methods to cover all fonts, but the
> methods doesn't know each other, thus fonts can end up with two CMap
> tables.

Indeed, those features should be merged.


    Werner