The standard PDF X-3 is good, so you don’t need to change anything. In particular, it’s not needed to convert text to curves, because the PDF will embed all the fonts. Nathan Segal has been working as a Freelance Writer for 14 years. In that time, he has written 527 articles and published six books. The Densitometer scale is a series of gray boxes ranging from light to dark. But after we have finished, our customer wants to change the fonts, and asks us to use Humanist777 – 30 pts for the titles and HelveticaNeue LT Pro 55 Roman – 12 pts for the body of the text.