On 3/8/2014 1:46 AM, Reinhard Kotucha wrote:
Hi, I'm currently trying to insert XMP metadata into a PDF file in order to make it PDF/A compliant.
The XML stuff is a Lua string and I'm using pdf.obj() in order to create the object. However, leading whitespace is renoved by pdf.obj(). As far as the XML stuff is concerned, it's not a big problem if indentation gets lost because XML parsers ignore it anyway.
However, I have to add about 2..4 kB of padding and all validators insist on space characters (0x20). This padding is important because it allows content management systems to extend the XML stuff without the need to re-generate the xref table.
After all, I would expect that pdf.obj() allows to insert even binary stuff because PDF objects can contain anything. Hence I assume that the current behavior is not desired.
I didn't try pdf.immediateobj() yet but I fear that it's affected too.
this works quite ok local s = [[ <foo> <bar> some crap </bar> </foo> ]] pdf.refobj(pdf.obj("stream",s)) pdf.immediateobj(s) of course if you embed that kind of lua code in a tex file then you have to make sure that you use a catcode regime that retains spaces .. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------