Metadata with pdfcairo in gnuplot

Question

I am producing graphs in gnuplot with pdfcairo terminal.

I would like to control metadata such like: title, subject, author, creation date, keywords. So far these fields are empty [Ninguno] or misquoted

Is that possible in gnuplot?

Answer 1

If you used a latex-derivated terminal (epslatex), embedded metadata formats (i.e. hyperref or Adobe's xmp module) are accessible with a latex preamble in the set term line. The Cairo graphics library doesn't deal with metadata itself, you'll need to use some external tool.