Chrome reportedly uses wkhtmltopdf to print to pdf. A comment on StackOverflow also said the Chrome team would like to deprecrate command-line/headless print to

Chrome reportedly uses wkhtmltopdf to print to pdf. A comment on StackOverflow also said the Chrome team would like to deprecrate command-line/headless print to pdf it they could. I agree they should not simply make Chrome a shell over direct use of wkhtmltopdf -- which itself is easily available. Wkhtmltopdf provides and documents plenty of command-line options. I don't know what Safari is using underneath.