[XeTeX] XeTeX - PDF-x1a

[Zdenek Wagner]

2015-09-06 8:10 GMT+02:00 Bruno Le Floch <blflatex at gmail.com>:

> On 9/4/15, Arthur Reutenauer <arthur.reutenauer at normalesup.org> wrote:
> > On Thu, Sep 03, 2015 at 10:44:19AM -0400, Adam Drissel wrote:
> >> I need to be able to use XeTeX while still producing a PDF in x1a format
> >> (PDF/A, PDF-x1a).  Do you have any idea how I can do this using XeTeX?
> >
> >   Unfortunately it's not really possible at the moment; the package pdfx
> > aims at producing different standards of the PDF/A and PDF/X families
> > but is aimed at pdfTeX.  To my knowledge there has been no serious
> > effort to port it to XeTeX.
>
> As far as I remember from a talk at TUG 2015, the packages used to
> produce PDF/A using pdftex were extended to work with LuaTeX (perhaps
> using newer versions of the package) and one difficulty they faced
> with XeTeX was the lack of a way to compute MD5 sums.  Now IIRC a
> primitive was very recently added to XeTeX for MD5 sums.  So perhaps
> it wouldn't be too much work to port the package to XeTeX.
>

Luatex and pdftex have the \pdfminorversion primitive to set the required
PDF version. AFAIK there is no way how XeTeX could communicate such a
requirement to xdvipdfmx. The only way is to call xelatex -no-pdf ... and
xdvipdfmx -V4 ... (default is PDF 1.5 but PDX/x-1a:2003 requires PDF 1.4).

>
> I really don't know tbh,
> Bruno
>
>
> Zdeněk Wagner
> http://ttsm.icpf.cas.cz/team/wagner.shtml
> http://icebearsoft.euweb.cz
>
>
>
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