[XeTeX] XeTeX - PDF-x1a

Zdenek Wagner zdenek.wagner at gmail.com
Sun Sep 6 09:47:42 CEST 2015

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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