Add autoprint ability

[skorpi0n]

It would be nice if autoprint (automatically opens the print dialog) could be added to the pdf.
The code for the pdf is something like:
<<
/S /Named
/Type /Action
/N /Print

endobj

I know that jsPDF has this functionality as seen here:
https://github.com/parallax/jsPDF/blob/5d09af9135a2fe049c7d3c8b95df280d22e4a6db/src/modules/autoprint.js#L30

See example pdf for the feature

/Niclas
autoprint.pdf