Creating metadata using \hypersetup
The documentation of pdfx
is pretty clear on how metadata should be inserted, see Section 2.1:
As mentioned above, standards compliant PDF documents need XMP metadata to be included. In order to create XMP in the prescribed XML format, a simple data file holding the meta information of the document needs to be created either through a program or by hand. For our purposes, we name it as
\jobname.xmpdata
, a simple example of which will look like the following:\Keywords{pdfTeX\sep PDF/X-1a\sep PDF/A-b} \Title{Sample LaTeX input file} \Author{LaTeX project team} \Org{TeX Users Group}