Converting from Point Didot (dd) to Point Postscript (pt) | Typography

What is Point Didot (dd)

dd is a typographic unit of measurement based on the Didot point system. The Didot point, named after the famous French type designer Firmin Didot, is commonly used in European typography.

What is Point Postscript (pt)

pt is a unit of measurement widely used in digital typography. It is derived from the PostScript typesetting language developed by Adobe Systems. The point size in the PostScript system is a standard measurement in typesetting.

Conversion Formulas

• dd→pt Conversion: pt=dd×1.065657

• pt→dd Conversion: dd=pt×0.9383885

Examples

1. Conversion from dd to pt:

   • 3 (dd) = 3.19697 (pt)
   • 7 (dd) = 7.459597 (pt)
   • 2 (dd) = 2.131313 (pt)

2. Conversion from pt to dd:

   • 3 (pt) = 2.815166 (dd)
   • 7 (pt) = 6.56872 (dd)
   • 2 (pt) = 1.876777 (dd)

Use this page to perform converting from Point Didot (dd) to Point Postscript (pt) in your typography projects.